./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test24-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test24-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/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 32bit --witnessprinter.graph.data.programhash 043660dc5a969bbd34b12cbb93ba3e467b4f8613 .......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:53,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:53,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:53,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:53,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:53,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:53,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:53,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:53,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:53,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:53,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:53,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:53,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:53,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:53,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:53,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:53,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:53,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:53,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:53,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:53,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:53,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:53,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:53,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:53,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:53,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:53,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:53,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:53,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:53,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:53,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:53,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:53,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:53,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:53,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:53,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:53,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:53,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:53,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:53,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:53,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:53,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:57:53,506 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:53,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:53,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:53,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:53,508 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:53,508 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:57:53,508 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:57:53,508 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:57:53,509 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:57:53,509 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:57:53,509 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:57:53,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:53,509 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:53,509 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:53,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:53,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:53,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:53,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:57:53,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:57:53,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:57:53,510 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:53,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:53,511 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:57:53,511 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:53,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:57:53,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:53,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:53,511 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:57:53,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:53,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:53,512 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:57:53,513 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:57:53,513 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/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 043660dc5a969bbd34b12cbb93ba3e467b4f8613 [2019-10-22 08:57:53,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:53,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:53,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:53,547 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:53,548 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:53,548 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test24-1.c [2019-10-22 08:57:53,589 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/data/52bb5aad1/94cb54d7d7a44de0a00e0daa674c609e/FLAG43c34ba50 [2019-10-22 08:57:53,967 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:53,968 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/sv-benchmarks/c/ldv-regression/test24-1.c [2019-10-22 08:57:53,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/data/52bb5aad1/94cb54d7d7a44de0a00e0daa674c609e/FLAG43c34ba50 [2019-10-22 08:57:53,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/bin/uautomizer/data/52bb5aad1/94cb54d7d7a44de0a00e0daa674c609e [2019-10-22 08:57:53,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:53,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:53,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:53,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:53,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:53,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:53,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f3f706d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:53, skipping insertion in model container [2019-10-22 08:57:53,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:53" (1/1) ... [2019-10-22 08:57:54,001 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:54,018 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:54,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:54,214 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:54,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:54,243 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:54,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54 WrapperNode [2019-10-22 08:57:54,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:54,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:54,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:54,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:54,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:54,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:54,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:54,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:54,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:54,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:54,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:54,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:54,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c1aed580-3378-4207-bda7-73ecd8dee971/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 [2019-10-22 08:57:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:54,607 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:54,608 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:57:54,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:54 BoogieIcfgContainer [2019-10-22 08:57:54,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:54,609 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:57:54,609 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:57:54,613 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:57:54,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:54,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:57:53" (1/3) ... [2019-10-22 08:57:54,615 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e536260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:54, skipping insertion in model container [2019-10-22 08:57:54,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:54,615 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (2/3) ... [2019-10-22 08:57:54,615 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e536260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:54, skipping insertion in model container [2019-10-22 08:57:54,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:54,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:54" (3/3) ... [2019-10-22 08:57:54,618 INFO L371 chiAutomizerObserver]: Analyzing ICFG test24-1.c [2019-10-22 08:57:54,684 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:57:54,685 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:57:54,685 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:57:54,685 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:54,685 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:54,686 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:57:54,686 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:54,686 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:57:54,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-10-22 08:57:54,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:54,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:54,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:54,732 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 08:57:54,732 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:54,732 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:57:54,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-10-22 08:57:54,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:57:54,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:54,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:54,734 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 08:57:54,735 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:57:54,743 INFO L791 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 7#L-1true havoc main_#res;havoc main_#t~nondet1, main_#t~mem2, main_#t~pre4, main_#t~mem3, main_#t~ret5, main_~#ad1~0.base, main_~#ad1~0.offset, main_~ad2~0.base, main_~ad2~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#ad1~0.base, main_~#ad1~0.offset := #Ultimate.allocOnStack(80);havoc main_~ad2~0.base, main_~ad2~0.offset;havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L21true assume main_~i~0 >= 0 && main_~i~0 < 10;main_~ad2~0.base, main_~ad2~0.offset := main_~#ad1~0.base, main_~#ad1~0.offset;call write~int(main_~i~0, main_~#ad1~0.base, main_~#ad1~0.offset + 8 * main_~i~0, 4);main_~pa~0.base, main_~pa~0.offset := main_~#ad1~0.base, main_~#ad1~0.offset + 8 * main_~i~0;call main_#t~mem2 := read~int(main_~ad2~0.base, main_~ad2~0.offset + 8 * main_~i~0, 4);main_~i~0 := main_#t~mem2 - 10;havoc main_#t~mem2; 12#L26-3true [2019-10-22 08:57:54,743 INFO L793 eck$LassoCheckResult]: Loop: 12#L26-3true call main_#t~mem3 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 15#L26-1true assume !!(main_~i~0 < main_#t~mem3);havoc main_#t~mem3;main_#t~pre4 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre4; 12#L26-3true [2019-10-22 08:57:54,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:54,748 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-10-22 08:57:54,756 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:54,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807896678] [2019-10-22 08:57:54,757 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,757 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:54,910 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:54,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:54,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2019-10-22 08:57:54,912 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:54,913 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083878568] [2019-10-22 08:57:54,913 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,913 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:54,932 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:54,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:54,933 INFO L82 PathProgramCache]: Analyzing trace with hash 28693863, now seen corresponding path program 1 times [2019-10-22 08:57:54,933 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:54,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156960978] [2019-10-22 08:57:54,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:54,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:54,998 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:55,190 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-10-22 08:57:55,334 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-10-22 08:57:55,344 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:57:55,345 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:57:55,345 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:57:55,345 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:57:55,345 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:57:55,345 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:57:55,346 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:57:55,346 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:57:55,346 INFO L131 ssoRankerPreferences]: Filename of dumped script: test24-1.c_Iteration1_Lasso [2019-10-22 08:57:55,346 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:57:55,346 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:57:55,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,580 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-10-22 08:57:55,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:57:55,879 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2019-10-22 08:57:56,240 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:57:56,245 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:57:56,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:57:56,247 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:56,247 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:56,248 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:56,248 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:56,248 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:56,249 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:56,250 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:56,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:56,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:57:56,252 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:56,253 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:56,253 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:56,253 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:56,254 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:56,254 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:56,254 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:56,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:56,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:57:56,259 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:56,259 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:57:56,259 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:56,260 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:56,260 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:56,260 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:57:56,260 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:57:56,261 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:56,261 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:57:56,262 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:56,268 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:56,269 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:56,269 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:56,271 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:56,271 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:56,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:57:56,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:57:56,281 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:57:56,282 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:57:56,282 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:57:56,282 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:57:56,296 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:57:56,297 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:57:56,457 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:57:56,557 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-10-22 08:57:56,561 INFO L444 ModelExtractionUtils]: 26 out of 34 variables were initially zero. Simplification set additionally 5 variables to zero. [2019-10-22 08:57:56,563 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:57:56,565 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 08:57:56,565 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:57:56,566 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset)_1, ULTIMATE.start_main_~i~0) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~pa~0.base) ULTIMATE.start_main_~pa~0.offset)_1 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-10-22 08:57:56,593 INFO L297 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2019-10-22 08:57:56,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-22 08:57:56,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:56,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:56,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:56,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 08:57:56,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:56,710 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-10-22 08:57:56,711 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2019-10-22 08:57:56,760 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 35 states and 39 transitions. Complement of second has 7 states. [2019-10-22 08:57:56,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 08:57:56,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:57:56,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2019-10-22 08:57:56,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 3 letters. Loop has 2 letters. [2019-10-22 08:57:56,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:56,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 08:57:56,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:56,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 3 letters. Loop has 4 letters. [2019-10-22 08:57:56,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:57:56,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 39 transitions. [2019-10-22 08:57:56,769 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:57:56,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-10-22 08:57:56,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:57:56,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:57:56,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:57:56,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:56,772 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:56,772 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:56,772 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:56,773 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:57:56,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:56,773 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:57:56,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:57:56,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:57:56 BoogieIcfgContainer [2019-10-22 08:57:56,778 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:57:56,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:56,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:56,779 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:56,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:54" (3/4) ... [2019-10-22 08:57:56,783 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:57:56,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:56,784 INFO L168 Benchmark]: Toolchain (without parser) took 2797.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:56,785 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:56,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:56,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.92 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. [2019-10-22 08:57:56,787 INFO L168 Benchmark]: Boogie Preprocessor took 23.28 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. [2019-10-22 08:57:56,787 INFO L168 Benchmark]: RCFGBuilder took 305.72 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:56,788 INFO L168 Benchmark]: BuchiAutomizer took 2168.71 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: -13.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:56,788 INFO L168 Benchmark]: Witness Printer took 4.43 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. [2019-10-22 08:57:56,791 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.92 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 23.28 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 305.72 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2168.71 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: -13.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 4.43 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[pa][pa] + -1 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 13 SDslu, 12 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital156 mio100 ax100 hnf101 lsp96 ukn116 mio100 lsp80 div245 bol100 ite100 ukn100 eq131 hnf53 smp95 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: 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...