./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f932c1059c6a140c081a3f9115dadbff28d03ec1 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 03:28:55,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:28:55,123 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:28:55,129 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:28:55,129 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:28:55,130 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:28:55,130 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:28:55,131 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:28:55,132 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:28:55,132 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:28:55,133 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:28:55,133 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:28:55,133 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:28:55,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:28:55,134 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:28:55,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:28:55,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:28:55,136 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:28:55,137 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:28:55,137 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:28:55,138 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:28:55,139 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:28:55,140 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:28:55,140 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:28:55,140 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:28:55,140 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:28:55,141 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:28:55,141 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:28:55,142 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:28:55,142 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:28:55,142 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:28:55,143 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:28:55,143 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:28:55,143 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:28:55,143 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:28:55,144 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:28:55,144 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 03:28:55,151 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:28:55,152 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:28:55,152 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 03:28:55,152 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 03:28:55,153 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 03:28:55,153 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 03:28:55,153 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 03:28:55,153 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 03:28:55,153 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 03:28:55,153 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 03:28:55,153 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 03:28:55,153 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:28:55,153 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 03:28:55,153 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 03:28:55,154 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:28:55,154 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 03:28:55,155 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:28:55,155 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 03:28:55,155 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 03:28:55,155 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 03:28:55,155 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f932c1059c6a140c081a3f9115dadbff28d03ec1 [2018-12-02 03:28:55,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:28:55,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:28:55,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:28:55,185 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:28:55,186 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:28:55,186 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca_true-termination.c.i [2018-12-02 03:28:55,228 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/data/0a57123c1/20bf67d54e5d4de7b479b91ece482e85/FLAGc95e61f3e [2018-12-02 03:28:55,633 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:28:55,634 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca_true-termination.c.i [2018-12-02 03:28:55,640 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/data/0a57123c1/20bf67d54e5d4de7b479b91ece482e85/FLAGc95e61f3e [2018-12-02 03:28:55,648 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/uautomizer/data/0a57123c1/20bf67d54e5d4de7b479b91ece482e85 [2018-12-02 03:28:55,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:28:55,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:28:55,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:28:55,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:28:55,655 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:28:55,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eda5476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55, skipping insertion in model container [2018-12-02 03:28:55,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:28:55,687 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:28:55,857 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:28:55,863 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:28:55,926 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:28:55,950 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:28:55,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55 WrapperNode [2018-12-02 03:28:55,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:28:55,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:28:55,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:28:55,951 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:28:55,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:28:55,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:28:55,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:28:55,975 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:28:55,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... [2018-12-02 03:28:55,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:28:55,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:28:55,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:28:55,988 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:28:55,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ebfb90a3-07d8-43f5-8fdd-381d817fd7cf/bin-2019/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 [2018-12-02 03:28:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 03:28:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 03:28:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 03:28:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 03:28:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:28:56,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:28:56,116 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:28:56,116 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 03:28:56,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:56 BoogieIcfgContainer [2018-12-02 03:28:56,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:28:56,117 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 03:28:56,117 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 03:28:56,119 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 03:28:56,120 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 03:28:56,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 03:28:55" (1/3) ... [2018-12-02 03:28:56,120 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40fd98dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 03:28:56, skipping insertion in model container [2018-12-02 03:28:56,120 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 03:28:56,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:55" (2/3) ... [2018-12-02 03:28:56,121 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40fd98dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 03:28:56, skipping insertion in model container [2018-12-02 03:28:56,121 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 03:28:56,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:56" (3/3) ... [2018-12-02 03:28:56,122 INFO L375 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-2013CAV-Introduction-alloca_true-termination.c.i [2018-12-02 03:28:56,151 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 03:28:56,152 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 03:28:56,152 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 03:28:56,152 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 03:28:56,152 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:28:56,152 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:28:56,152 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 03:28:56,152 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:28:56,152 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 03:28:56,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 03:28:56,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 03:28:56,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 03:28:56,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 03:28:56,178 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 03:28:56,178 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 03:28:56,178 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 03:28:56,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-02 03:28:56,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 03:28:56,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 03:28:56,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 03:28:56,179 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 03:28:56,179 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 03:28:56,183 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.alloc(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.alloc(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(1, main_~y~0.base, main_~y~0.offset, 4); 5#L550-3true [2018-12-02 03:28:56,184 INFO L796 eck$LassoCheckResult]: Loop: 5#L550-3true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 9#L550-1true assume !!(main_#t~mem4 > 0);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);call main_#t~mem6 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem5 - main_#t~mem6, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem5;havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(1 + main_#t~mem7, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem7; 5#L550-3true [2018-12-02 03:28:56,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:28:56,187 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-12-02 03:28:56,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:28:56,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:28:56,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:28:56,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:28:56,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:28:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:28:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:28:56,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:28:56,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2018-12-02 03:28:56,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:28:56,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:28:56,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:28:56,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:28:56,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:28:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:28:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:28:56,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:28:56,282 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2018-12-02 03:28:56,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 03:28:56,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 03:28:56,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:28:56,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:28:56,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:28:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:28:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:28:56,465 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 03:28:56,466 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 03:28:56,466 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 03:28:56,466 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 03:28:56,466 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 03:28:56,466 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 03:28:56,466 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 03:28:56,466 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 03:28:56,467 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-2013CAV-Introduction-alloca_true-termination.c.i_Iteration1_Lasso [2018-12-02 03:28:56,467 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 03:28:56,467 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 03:28:56,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 03:28:56,826 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 03:28:56,829 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 03:28:56,830 INFO L122 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 [2018-12-02 03:28:56,831 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,832 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 03:28:56,832 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,832 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,832 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,833 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 03:28:56,834 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 03:28:56,835 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,836 INFO L122 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 [2018-12-02 03:28:56,836 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,836 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 03:28:56,836 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,836 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,836 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,837 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 03:28:56,837 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 03:28:56,838 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,838 INFO L122 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 [2018-12-02 03:28:56,838 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,838 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 03:28:56,839 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,839 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,839 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,839 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 03:28:56,839 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 03:28:56,840 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,840 INFO L122 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 [2018-12-02 03:28:56,840 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,840 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,841 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,841 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,842 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 03:28:56,842 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,844 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,844 INFO L122 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 [2018-12-02 03:28:56,845 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,845 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 03:28:56,845 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,845 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,845 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,846 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 03:28:56,846 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 03:28:56,846 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,847 INFO L122 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 [2018-12-02 03:28:56,847 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,847 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,847 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,847 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,848 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 03:28:56,848 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,850 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,851 INFO L122 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 [2018-12-02 03:28:56,851 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,851 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 03:28:56,851 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,851 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,853 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-02 03:28:56,853 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,861 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,861 INFO L122 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 [2018-12-02 03:28:56,862 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,862 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,862 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,862 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,863 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 03:28:56,863 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,870 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,871 INFO L122 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 [2018-12-02 03:28:56,871 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,872 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,872 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,873 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 03:28:56,873 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,881 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,881 INFO L122 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 [2018-12-02 03:28:56,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,882 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,882 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,882 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,883 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 03:28:56,883 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,885 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,885 INFO L122 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 [2018-12-02 03:28:56,886 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,886 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 03:28:56,886 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,886 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,887 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-02 03:28:56,887 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,896 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,896 INFO L122 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 [2018-12-02 03:28:56,897 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,897 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,897 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,897 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,900 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 03:28:56,900 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,918 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 03:28:56,918 INFO L122 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 [2018-12-02 03:28:56,919 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 03:28:56,919 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 03:28:56,919 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 03:28:56,919 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 03:28:56,921 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 03:28:56,921 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 03:28:56,936 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 03:28:56,953 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-12-02 03:28:56,954 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-02 03:28:56,956 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 03:28:56,957 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-02 03:28:56,957 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 03:28:56,958 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_1 - 1 >= 0] [2018-12-02 03:28:56,993 INFO L297 tatePredicateManager]: 10 out of 12 supporting invariants were superfluous and have been removed [2018-12-02 03:28:57,003 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 03:28:57,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:28:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:28:57,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:28:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:28:57,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:28:57,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:28:57,070 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 [2018-12-02 03:28:57,071 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-12-02 03:28:57,115 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 18 states and 20 transitions. Complement of second has 7 states. [2018-12-02 03:28:57,115 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 [2018-12-02 03:28:57,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 03:28:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2018-12-02 03:28:57,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-02 03:28:57,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 03:28:57,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-02 03:28:57,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 03:28:57,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2018-12-02 03:28:57,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 03:28:57,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2018-12-02 03:28:57,120 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 03:28:57,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2018-12-02 03:28:57,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 03:28:57,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 03:28:57,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 03:28:57,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 03:28:57,123 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 03:28:57,123 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 03:28:57,123 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 03:28:57,123 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 03:28:57,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 03:28:57,123 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 03:28:57,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 03:28:57,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 03:28:57 BoogieIcfgContainer [2018-12-02 03:28:57,127 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 03:28:57,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 03:28:57,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 03:28:57,127 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 03:28:57,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:56" (3/4) ... [2018-12-02 03:28:57,130 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 03:28:57,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 03:28:57,130 INFO L168 Benchmark]: Toolchain (without parser) took 1479.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 950.6 MB in the beginning and 876.9 MB in the end (delta: 73.7 MB). Peak memory consumption was 172.3 MB. Max. memory is 11.5 GB. [2018-12-02 03:28:57,131 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:28:57,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -137.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:28:57,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.34 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:28:57,132 INFO L168 Benchmark]: Boogie Preprocessor took 12.86 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. [2018-12-02 03:28:57,133 INFO L168 Benchmark]: RCFGBuilder took 128.79 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-02 03:28:57,133 INFO L168 Benchmark]: BuchiAutomizer took 1009.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 876.9 MB in the end (delta: 193.8 MB). Peak memory consumption was 193.8 MB. Max. memory is 11.5 GB. [2018-12-02 03:28:57,133 INFO L168 Benchmark]: Witness Printer took 2.79 ms. Allocated memory is still 1.1 GB. Free memory is still 876.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:28:57,135 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -137.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.34 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 128.79 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1009.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 876.9 MB in the end (delta: 193.8 MB). Peak memory consumption was 193.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.79 ms. Allocated memory is still 1.1 GB. Free memory is still 876.9 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 #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 6 SDs, 0 SdLazy, 6 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital206 mio100 ax108 hnf100 lsp87 ukn55 mio100 lsp40 div100 bol100 ite100 ukn100 eq188 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...