./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/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 50bdaf600d03af0a677a59daf6a875dbe69c10b2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:51:14,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:51:14,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:51:14,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:51:14,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:51:14,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:51:14,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:51:14,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:51:14,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:51:14,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:51:14,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:51:14,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:51:14,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:51:14,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:51:14,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:51:14,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:51:14,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:51:14,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:51:14,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:51:14,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:51:14,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:51:14,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:51:14,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:51:14,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:51:14,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:51:14,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:51:14,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:51:14,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:51:14,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:51:14,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:51:14,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:51:14,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:51:14,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:51:14,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:51:14,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:51:14,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:51:14,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:51:14,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:51:14,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:51:14,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:51:14,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:51:14,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:51:14,578 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:51:14,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:51:14,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:51:14,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:51:14,579 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:51:14,580 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:51:14,580 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:51:14,580 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:51:14,580 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:51:14,580 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:51:14,581 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:51:14,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:51:14,581 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:51:14,581 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:51:14,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:51:14,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:51:14,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:51:14,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:51:14,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:51:14,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:51:14,582 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:51:14,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:51:14,583 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:51:14,583 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:51:14,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:51:14,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:51:14,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:51:14,584 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:51:14,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:51:14,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:51:14,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:51:14,584 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:51:14,585 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:51:14,585 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_0e8e485d-f2cb-4f72-a794-43487186dea8/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 -> 50bdaf600d03af0a677a59daf6a875dbe69c10b2 [2019-12-07 17:51:14,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:51:14,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:51:14,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:51:14,703 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:51:14,703 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:51:14,703 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i [2019-12-07 17:51:14,743 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/data/24e614568/7a96d3040a1d4db8ab204d8f6e5d5d0d/FLAGd5e3a0a37 [2019-12-07 17:51:15,147 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:51:15,147 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i [2019-12-07 17:51:15,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/data/24e614568/7a96d3040a1d4db8ab204d8f6e5d5d0d/FLAGd5e3a0a37 [2019-12-07 17:51:15,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/data/24e614568/7a96d3040a1d4db8ab204d8f6e5d5d0d [2019-12-07 17:51:15,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:51:15,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:51:15,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:51:15,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:51:15,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:51:15,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c43023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15, skipping insertion in model container [2019-12-07 17:51:15,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:51:15,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:51:15,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:51:15,445 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:51:15,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:51:15,501 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:51:15,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15 WrapperNode [2019-12-07 17:51:15,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:51:15,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:51:15,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:51:15,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:51:15,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:51:15,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:51:15,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:51:15,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:51:15,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... [2019-12-07 17:51:15,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:51:15,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:51:15,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:51:15,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:51:15,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/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 [2019-12-07 17:51:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:51:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:51:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:51:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:51:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:51:15,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:51:15,735 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:51:15,735 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 17:51:15,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:51:15 BoogieIcfgContainer [2019-12-07 17:51:15,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:51:15,736 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:51:15,736 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:51:15,738 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:51:15,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:51:15,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:51:15" (1/3) ... [2019-12-07 17:51:15,739 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f4ae171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:51:15, skipping insertion in model container [2019-12-07 17:51:15,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:51:15,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:51:15" (2/3) ... [2019-12-07 17:51:15,740 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f4ae171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:51:15, skipping insertion in model container [2019-12-07 17:51:15,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:51:15,740 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:51:15" (3/3) ... [2019-12-07 17:51:15,741 INFO L371 chiAutomizerObserver]: Analyzing ICFG strreplace-alloca-2.i [2019-12-07 17:51:15,768 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:51:15,768 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:51:15,768 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:51:15,768 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:51:15,768 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:51:15,769 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:51:15,769 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:51:15,769 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:51:15,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-12-07 17:51:15,790 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 17:51:15,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:51:15,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:51:15,795 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 17:51:15,795 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 17:51:15,795 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:51:15,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-12-07 17:51:15,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 17:51:15,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:51:15,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:51:15,796 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 17:51:15,797 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 17:51:15,801 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 17#L528true assume !(main_~length1~0 < 1); 5#L528-2true call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 12#L533-3true [2019-12-07 17:51:15,802 INFO L796 eck$LassoCheckResult]: Loop: 12#L533-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet9, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 11#L533-2true main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 12#L533-3true [2019-12-07 17:51:15,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:15,805 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-12-07 17:51:15,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:15,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920900312] [2019-12-07 17:51:15,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:15,892 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:51:15,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:15,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2019-12-07 17:51:15,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:15,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408420678] [2019-12-07 17:51:15,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:15,906 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:51:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:15,907 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2019-12-07 17:51:15,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:15,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125256313] [2019-12-07 17:51:15,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:15,929 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:51:16,060 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:51:16,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:51:16,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:51:16,061 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:51:16,061 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:51:16,061 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,061 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:51:16,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:51:16,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: strreplace-alloca-2.i_Iteration1_Lasso [2019-12-07 17:51:16,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:51:16,062 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:51:16,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:16,308 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:51:16,311 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,315 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 [2019-12-07 17:51:16,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:16,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:16,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:16,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,324 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 [2019-12-07 17:51:16,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:16,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:16,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:16,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,330 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 [2019-12-07 17:51:16,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:16,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:16,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:16,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,337 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 [2019-12-07 17:51:16,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:16,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:16,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:16,340 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,344 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 [2019-12-07 17:51:16,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:16,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:16,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:16,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,351 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 [2019-12-07 17:51:16,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:16,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:16,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,363 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 [2019-12-07 17:51:16,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:16,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:16,370 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,374 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 [2019-12-07 17:51:16,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:16,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:16,380 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,383 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 [2019-12-07 17:51:16,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:16,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:16,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,393 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 [2019-12-07 17:51:16,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:16,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:16,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:16,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,403 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 [2019-12-07 17:51:16,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:16,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:16,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,413 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 [2019-12-07 17:51:16,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:16,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:16,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:16,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:16,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:16,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:16,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:51:16,451 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2019-12-07 17:51:16,451 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:16,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:51:16,461 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 17:51:16,461 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:51:16,462 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 17:51:16,472 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 17:51:16,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:51:16,506 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:51:16,508 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:51:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:51:16,520 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:51:16,521 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:51:16,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:51:16,543 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 [2019-12-07 17:51:16,544 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2019-12-07 17:51:16,579 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 38 states and 51 transitions. Complement of second has 7 states. [2019-12-07 17:51:16,580 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 [2019-12-07 17:51:16,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 17:51:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2019-12-07 17:51:16,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 17:51:16,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:51:16,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 17:51:16,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:51:16,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 4 letters. Loop has 4 letters. [2019-12-07 17:51:16,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:51:16,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2019-12-07 17:51:16,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 17:51:16,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 12 states and 16 transitions. [2019-12-07 17:51:16,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-12-07 17:51:16,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 17:51:16,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-12-07 17:51:16,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:51:16,591 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-12-07 17:51:16,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-12-07 17:51:16,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 17:51:16,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 17:51:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-12-07 17:51:16,610 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-12-07 17:51:16,610 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-12-07 17:51:16,610 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:51:16,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-12-07 17:51:16,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 17:51:16,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:51:16,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:51:16,611 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:51:16,611 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 17:51:16,612 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 115#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 116#L528 assume !(main_~length1~0 < 1); 117#L528-2 call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 118#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 122#L533-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrreplace_#in~s.base, cstrreplace_#in~s.offset, cstrreplace_#in~old, cstrreplace_#in~new := main_~nondetString1~0.base, main_~nondetString1~0.offset, (if main_#t~nondet10 % 256 <= 127 then main_#t~nondet10 % 256 else main_#t~nondet10 % 256 - 256), (if main_#t~nondet11 % 256 <= 127 then main_#t~nondet11 % 256 else main_#t~nondet11 % 256 - 256);havoc cstrreplace_#res;havoc cstrreplace_#t~mem3, cstrreplace_#t~post4, cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset, cstrreplace_#t~mem2, cstrreplace_~s.base, cstrreplace_~s.offset, cstrreplace_~old, cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, cstrreplace_~numReplaced~0;cstrreplace_~s.base, cstrreplace_~s.offset := cstrreplace_#in~s.base, cstrreplace_#in~s.offset;cstrreplace_~old := cstrreplace_#in~old;cstrreplace_~new := cstrreplace_#in~new;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_~s.base, cstrreplace_~s.offset;cstrreplace_~numReplaced~0 := 0; 112#L517-3 [2019-12-07 17:51:16,612 INFO L796 eck$LassoCheckResult]: Loop: 112#L517-3 call cstrreplace_#t~mem2 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 113#L517-1 assume !!(0 != cstrreplace_#t~mem2);havoc cstrreplace_#t~mem2;call cstrreplace_#t~mem3 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 114#L518 assume cstrreplace_#t~mem3 == cstrreplace_~old;havoc cstrreplace_#t~mem3;call write~int(cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1);cstrreplace_#t~post4 := cstrreplace_~numReplaced~0;cstrreplace_~numReplaced~0 := 1 + cstrreplace_#t~post4;havoc cstrreplace_#t~post4; 111#L518-2 cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset := cstrreplace_~p~0.base, cstrreplace_~p~0.offset;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_#t~post5.base, 1 + cstrreplace_#t~post5.offset;havoc cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset; 112#L517-3 [2019-12-07 17:51:16,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:16,612 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2019-12-07 17:51:16,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:16,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499646788] [2019-12-07 17:51:16,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,640 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:51:16,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:16,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1790538, now seen corresponding path program 1 times [2019-12-07 17:51:16,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:16,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854493435] [2019-12-07 17:51:16,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,651 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:51:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:16,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1952978730, now seen corresponding path program 1 times [2019-12-07 17:51:16,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:16,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778058672] [2019-12-07 17:51:16,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:51:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:51:16,753 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778058672] [2019-12-07 17:51:16,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:51:16,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 17:51:16,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397438214] [2019-12-07 17:51:16,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:51:16,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:51:16,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:51:16,794 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand 7 states. [2019-12-07 17:51:16,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:51:16,846 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-12-07 17:51:16,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:51:16,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-12-07 17:51:16,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 17:51:16,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 16 transitions. [2019-12-07 17:51:16,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 17:51:16,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 17:51:16,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2019-12-07 17:51:16,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:51:16,848 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 17:51:16,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2019-12-07 17:51:16,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-12-07 17:51:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 17:51:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-12-07 17:51:16,850 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 17:51:16,850 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 17:51:16,850 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:51:16,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2019-12-07 17:51:16,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 17:51:16,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:51:16,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:51:16,851 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:51:16,851 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 17:51:16,851 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 155#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 156#L528 assume !(main_~length1~0 < 1); 161#L528-2 call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 162#L533-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet9, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 164#L533-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 165#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 166#L533-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrreplace_#in~s.base, cstrreplace_#in~s.offset, cstrreplace_#in~old, cstrreplace_#in~new := main_~nondetString1~0.base, main_~nondetString1~0.offset, (if main_#t~nondet10 % 256 <= 127 then main_#t~nondet10 % 256 else main_#t~nondet10 % 256 - 256), (if main_#t~nondet11 % 256 <= 127 then main_#t~nondet11 % 256 else main_#t~nondet11 % 256 - 256);havoc cstrreplace_#res;havoc cstrreplace_#t~mem3, cstrreplace_#t~post4, cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset, cstrreplace_#t~mem2, cstrreplace_~s.base, cstrreplace_~s.offset, cstrreplace_~old, cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, cstrreplace_~numReplaced~0;cstrreplace_~s.base, cstrreplace_~s.offset := cstrreplace_#in~s.base, cstrreplace_#in~s.offset;cstrreplace_~old := cstrreplace_#in~old;cstrreplace_~new := cstrreplace_#in~new;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_~s.base, cstrreplace_~s.offset;cstrreplace_~numReplaced~0 := 0; 160#L517-3 [2019-12-07 17:51:16,851 INFO L796 eck$LassoCheckResult]: Loop: 160#L517-3 call cstrreplace_#t~mem2 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 157#L517-1 assume !!(0 != cstrreplace_#t~mem2);havoc cstrreplace_#t~mem2;call cstrreplace_#t~mem3 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 158#L518 assume cstrreplace_#t~mem3 == cstrreplace_~old;havoc cstrreplace_#t~mem3;call write~int(cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1);cstrreplace_#t~post4 := cstrreplace_~numReplaced~0;cstrreplace_~numReplaced~0 := 1 + cstrreplace_#t~post4;havoc cstrreplace_#t~post4; 159#L518-2 cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset := cstrreplace_~p~0.base, cstrreplace_~p~0.offset;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_#t~post5.base, 1 + cstrreplace_#t~post5.offset;havoc cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset; 160#L517-3 [2019-12-07 17:51:16,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:16,851 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2019-12-07 17:51:16,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:16,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446148479] [2019-12-07 17:51:16,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,874 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:51:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:16,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1790538, now seen corresponding path program 2 times [2019-12-07 17:51:16,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:16,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794660499] [2019-12-07 17:51:16,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,882 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:51:16,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:16,883 INFO L82 PathProgramCache]: Analyzing trace with hash -357903304, now seen corresponding path program 1 times [2019-12-07 17:51:16,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:51:16,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072437410] [2019-12-07 17:51:16,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:51:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:51:16,912 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:51:17,124 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-12-07 17:51:17,442 WARN L192 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-12-07 17:51:17,445 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:51:17,445 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:51:17,445 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:51:17,445 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:51:17,445 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:51:17,445 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:17,446 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:51:17,446 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:51:17,446 INFO L133 ssoRankerPreferences]: Filename of dumped script: strreplace-alloca-2.i_Iteration3_Lasso [2019-12-07 17:51:17,446 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:51:17,446 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:51:17,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:17,501 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-12-07 17:51:17,982 WARN L192 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-12-07 17:51:18,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:18,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:18,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:18,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:18,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 17:51:18,449 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:51:18,449 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,451 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 [2019-12-07 17:51:18,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:18,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:18,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:18,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,459 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 [2019-12-07 17:51:18,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:18,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:18,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:18,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,466 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 [2019-12-07 17:51:18,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:18,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:18,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:18,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,474 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 [2019-12-07 17:51:18,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:18,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:18,479 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,487 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 [2019-12-07 17:51:18,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:18,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:18,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,496 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 [2019-12-07 17:51:18,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:18,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:18,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:18,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,502 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 [2019-12-07 17:51:18,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:18,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:18,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:18,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,509 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 [2019-12-07 17:51:18,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:18,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:18,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,518 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 [2019-12-07 17:51:18,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:18,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:18,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:18,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,524 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 [2019-12-07 17:51:18,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:18,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:18,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:18,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,531 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 [2019-12-07 17:51:18,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:51:18,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:51:18,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:51:18,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,538 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 [2019-12-07 17:51:18,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:18,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:18,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,546 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 [2019-12-07 17:51:18,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:51:18,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:51:18,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:51:18,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:51:18,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:51:18,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:51:18,562 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:51:18,583 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-12-07 17:51:18,583 INFO L444 ModelExtractionUtils]: 7 out of 34 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e8e485d-f2cb-4f72-a794-43487186dea8/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:51:18,586 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:51:18,587 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 17:51:18,588 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:51:18,588 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2, ULTIMATE.start_cstrreplace_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 - 1*ULTIMATE.start_cstrreplace_~p~0.offset Supporting invariants [] [2019-12-07 17:51:18,603 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-12-07 17:51:18,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 17:51:18,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:51:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:51:18,630 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:51:18,631 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:51:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:51:18,643 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:51:18,644 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:51:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:51:18,655 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 17:51:18,655 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 17:51:18,680 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 16 states and 21 transitions. Complement of second has 5 states. [2019-12-07 17:51:18,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 17:51:18,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 17:51:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-12-07 17:51:18,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 4 letters. [2019-12-07 17:51:18,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:51:18,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 4 letters. [2019-12-07 17:51:18,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:51:18,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 8 letters. [2019-12-07 17:51:18,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:51:18,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2019-12-07 17:51:18,682 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:51:18,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-12-07 17:51:18,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:51:18,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:51:18,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:51:18,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:51:18,683 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:51:18,683 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:51:18,683 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:51:18,683 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 17:51:18,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:51:18,683 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:51:18,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 17:51:18,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:51:18 BoogieIcfgContainer [2019-12-07 17:51:18,687 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:51:18,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:51:18,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:51:18,688 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:51:18,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:51:15" (3/4) ... [2019-12-07 17:51:18,690 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:51:18,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:51:18,691 INFO L168 Benchmark]: Toolchain (without parser) took 3523.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 943.5 MB in the beginning and 890.2 MB in the end (delta: 53.4 MB). Peak memory consumption was 207.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:51:18,692 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:51:18,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:51:18,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.64 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. [2019-12-07 17:51:18,694 INFO L168 Benchmark]: Boogie Preprocessor took 17.41 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:51:18,694 INFO L168 Benchmark]: RCFGBuilder took 187.31 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:51:18,695 INFO L168 Benchmark]: BuchiAutomizer took 2951.12 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.1 GB in the beginning and 890.2 MB in the end (delta: 175.6 MB). Peak memory consumption was 220.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:51:18,695 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.2 GB. Free memory is still 890.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:51:18,698 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 333.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.64 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 17.41 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.31 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2951.12 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.1 GB in the beginning and 890.2 MB in the end (delta: 175.6 MB). Peak memory consumption was 220.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.2 GB. Free memory is still 890.2 MB. 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 #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * p and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 47 SDslu, 42 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital337 mio100 ax111 hnf98 lsp59 ukn129 mio100 lsp38 div114 bol100 ite100 ukn100 eq163 hnf84 smp97 dnf141 smp77 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms 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...