./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/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 a273450068a0d5a7644f3536efd5c3c568bd1daf .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:03:08,133 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:03:08,134 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:03:08,141 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:03:08,141 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:03:08,142 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:03:08,143 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:03:08,144 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:03:08,145 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:03:08,145 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:03:08,146 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:03:08,146 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:03:08,147 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:03:08,147 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:03:08,148 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:03:08,149 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:03:08,149 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:03:08,151 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:03:08,152 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:03:08,153 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:03:08,154 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:03:08,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:03:08,156 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:03:08,156 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:03:08,156 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:03:08,157 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:03:08,158 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:03:08,158 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:03:08,159 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:03:08,160 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:03:08,160 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:03:08,160 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:03:08,161 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:03:08,161 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:03:08,161 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:03:08,162 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:03:08,162 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 08:03:08,173 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:03:08,173 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:03:08,174 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 08:03:08,175 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 08:03:08,175 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 08:03:08,175 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 08:03:08,175 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 08:03:08,175 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 08:03:08,175 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 08:03:08,175 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 08:03:08,175 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 08:03:08,176 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:03:08,176 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 08:03:08,176 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:03:08,176 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:03:08,176 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 08:03:08,176 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 08:03:08,176 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 08:03:08,177 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:03:08,177 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 08:03:08,177 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:03:08,177 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 08:03:08,177 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:03:08,177 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:03:08,177 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 08:03:08,177 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:03:08,177 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 08:03:08,178 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 08:03:08,178 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 08:03:08,178 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_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/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 -> a273450068a0d5a7644f3536efd5c3c568bd1daf [2018-11-23 08:03:08,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:03:08,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:03:08,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:03:08,211 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:03:08,211 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:03:08,211 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i [2018-11-23 08:03:08,256 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/data/1b76197d0/1f50d6a124cc4745adca6c06fba67d97/FLAGa7ec194dd [2018-11-23 08:03:08,636 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:03:08,637 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i [2018-11-23 08:03:08,644 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/data/1b76197d0/1f50d6a124cc4745adca6c06fba67d97/FLAGa7ec194dd [2018-11-23 08:03:09,019 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/bin-2019/uautomizer/data/1b76197d0/1f50d6a124cc4745adca6c06fba67d97 [2018-11-23 08:03:09,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:03:09,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:03:09,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:03:09,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:03:09,025 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:03:09,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a6dbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09, skipping insertion in model container [2018-11-23 08:03:09,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:03:09,061 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:03:09,261 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:03:09,268 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:03:09,301 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:03:09,386 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:03:09,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09 WrapperNode [2018-11-23 08:03:09,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:03:09,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:03:09,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:03:09,387 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:03:09,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:03:09,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:03:09,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:03:09,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:03:09,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... [2018-11-23 08:03:09,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:03:09,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:03:09,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:03:09,431 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:03:09,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b076816e-cbb7-4f97-ac4a-a7112eaef8f3/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 [2018-11-23 08:03:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 08:03:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 08:03:09,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 08:03:09,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 08:03:09,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:03:09,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:03:09,588 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:03:09,589 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 08:03:09,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:03:09 BoogieIcfgContainer [2018-11-23 08:03:09,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:03:09,589 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 08:03:09,589 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 08:03:09,592 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 08:03:09,593 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:03:09,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 08:03:09" (1/3) ... [2018-11-23 08:03:09,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bd2f9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 08:03:09, skipping insertion in model container [2018-11-23 08:03:09,594 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:03:09,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:03:09" (2/3) ... [2018-11-23 08:03:09,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bd2f9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 08:03:09, skipping insertion in model container [2018-11-23 08:03:09,594 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:03:09,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:03:09" (3/3) ... [2018-11-23 08:03:09,596 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrchr_reverse_alloca_true-termination.c.i [2018-11-23 08:03:09,630 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 08:03:09,631 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 08:03:09,631 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 08:03:09,631 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 08:03:09,631 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:03:09,631 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:03:09,632 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 08:03:09,632 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:03:09,632 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 08:03:09,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-23 08:03:09,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 08:03:09,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:03:09,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:03:09,665 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 08:03:09,665 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 08:03:09,665 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 08:03:09,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-23 08:03:09,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 08:03:09,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:03:09,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:03:09,667 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 08:03:09,667 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 08:03:09,672 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 7#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 8#L372true assume !(main_~length~0 < 1); 12#L372-2true call main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.alloc(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset, 1);main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 9#L366-5true [2018-11-23 08:03:09,672 INFO L796 eck$LassoCheckResult]: Loop: 9#L366-5true call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := 0 != cstrchr_#t~mem205; 4#L366-1true assume cstrchr_#t~short207;call cstrchr_#t~mem206 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := cstrchr_#t~mem206 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 6#L366-3true assume !!cstrchr_#t~short207;havoc cstrchr_#t~mem206;havoc cstrchr_#t~mem205;havoc cstrchr_#t~short207;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, cstrchr_#t~post208.offset - 1;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 9#L366-5true [2018-11-23 08:03:09,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:03:09,676 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2018-11-23 08:03:09,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:03:09,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:03:09,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:03:09,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:03:09,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:03:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:03:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:03:09,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:03:09,764 INFO L82 PathProgramCache]: Analyzing trace with hash 43797, now seen corresponding path program 1 times [2018-11-23 08:03:09,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:03:09,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:03:09,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:03:09,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:03:09,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:03:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:03:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:03:09,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:03:09,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815409, now seen corresponding path program 1 times [2018-11-23 08:03:09,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:03:09,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:03:09,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:03:09,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:03:09,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:03:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:03:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:03:10,154 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:03:10,155 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:03:10,155 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:03:10,155 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:03:10,155 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 08:03:10,155 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:03:10,155 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:03:10,156 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:03:10,156 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrchr_reverse_alloca_true-termination.c.i_Iteration1_Lasso [2018-11-23 08:03:10,156 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:03:10,156 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:03:10,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:03:10,649 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-11-23 08:03:10,681 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:03:10,684 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 08:03:10,686 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 [2018-11-23 08:03:10,687 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,687 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:03:10,687 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,688 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,688 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,689 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:03:10,689 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:03:10,692 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,692 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 [2018-11-23 08:03:10,692 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,693 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:03:10,693 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,693 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,693 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,694 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:03:10,694 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:03:10,694 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,695 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 [2018-11-23 08:03:10,695 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,696 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,696 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,696 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,698 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:03:10,698 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:03:10,701 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,701 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 [2018-11-23 08:03:10,702 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,702 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:03:10,702 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,702 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,702 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,702 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:03:10,703 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:03:10,703 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,703 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 [2018-11-23 08:03:10,704 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,704 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:03:10,704 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,704 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,704 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,705 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:03:10,705 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:03:10,705 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,706 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 [2018-11-23 08:03:10,706 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,706 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:03:10,707 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,707 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,707 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,707 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:03:10,708 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:03:10,709 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,709 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 [2018-11-23 08:03:10,709 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,710 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:03:10,710 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,710 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,710 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,711 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:03:10,711 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:03:10,711 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,712 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 [2018-11-23 08:03:10,712 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,712 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,713 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,713 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,714 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:03:10,714 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:03:10,717 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,718 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 [2018-11-23 08:03:10,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,718 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:03:10,719 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,719 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,719 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,719 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:03:10,720 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:03:10,721 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,721 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 [2018-11-23 08:03:10,722 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,722 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:03:10,722 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,722 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,722 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,723 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:03:10,723 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:03:10,723 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:03:10,724 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 [2018-11-23 08:03:10,724 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:03:10,725 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:03:10,725 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:03:10,725 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:03:10,729 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:03:10,729 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:03:10,766 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 08:03:10,797 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-23 08:03:10,797 INFO L444 ModelExtractionUtils]: 19 out of 25 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-23 08:03:10,799 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 08:03:10,800 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 08:03:10,801 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 08:03:10,801 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset) = 2*ULTIMATE.start_cstrchr_~s.offset + 1 Supporting invariants [] [2018-11-23 08:03:10,829 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2018-11-23 08:03:10,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:03:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:03:10,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:03:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:03:10,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:03:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:03:10,893 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 [2018-11-23 08:03:10,894 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2018-11-23 08:03:10,936 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 5 states. [2018-11-23 08:03:10,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 08:03:10,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 08:03:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-23 08:03:10,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 08:03:10,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:03:10,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-23 08:03:10,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:03:10,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-23 08:03:10,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:03:10,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2018-11-23 08:03:10,942 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:03:10,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2018-11-23 08:03:10,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 08:03:10,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 08:03:10,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 08:03:10,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 08:03:10,945 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:03:10,946 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:03:10,946 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:03:10,946 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 08:03:10,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:03:10,946 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:03:10,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 08:03:10,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 08:03:10 BoogieIcfgContainer [2018-11-23 08:03:10,950 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 08:03:10,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:03:10,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:03:10,951 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:03:10,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:03:09" (3/4) ... [2018-11-23 08:03:10,953 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 08:03:10,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:03:10,954 INFO L168 Benchmark]: Toolchain (without parser) took 1932.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:03:10,954 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:03:10,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-23 08:03:10,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.73 ms. Allocated memory is still 1.2 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. [2018-11-23 08:03:10,956 INFO L168 Benchmark]: Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:03:10,956 INFO L168 Benchmark]: RCFGBuilder took 158.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-23 08:03:10,956 INFO L168 Benchmark]: BuchiAutomizer took 1360.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:03:10,957 INFO L168 Benchmark]: Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:03:10,959 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 363.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.73 ms. Allocated memory is still 1.2 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 15.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 158.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1360.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * s + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 12 SDtfs, 14 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital178 mio100 ax100 hnf98 lsp98 ukn70 mio100 lsp37 div154 bol100 ite100 ukn100 eq153 hnf72 smp100 dnf784 smp27 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms 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...