./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/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 32bit --witnessprinter.graph.data.programhash 707f24c72c63346ec05641b1665aeeecec8225e6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 20:11:47,315 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 20:11:47,316 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 20:11:47,322 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 20:11:47,322 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 20:11:47,322 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 20:11:47,323 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 20:11:47,324 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 20:11:47,325 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 20:11:47,326 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 20:11:47,326 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 20:11:47,326 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 20:11:47,327 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 20:11:47,327 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 20:11:47,328 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 20:11:47,329 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 20:11:47,329 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 20:11:47,330 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 20:11:47,331 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 20:11:47,332 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 20:11:47,333 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 20:11:47,333 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 20:11:47,335 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 20:11:47,335 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 20:11:47,335 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 20:11:47,336 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 20:11:47,336 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 20:11:47,337 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 20:11:47,337 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 20:11:47,338 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 20:11:47,338 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 20:11:47,338 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 20:11:47,339 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 20:11:47,339 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 20:11:47,339 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 20:11:47,340 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 20:11:47,340 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 20:11:47,348 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 20:11:47,348 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 20:11:47,349 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 20:11:47,349 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 20:11:47,349 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 20:11:47,350 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 20:11:47,350 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 20:11:47,350 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 20:11:47,350 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 20:11:47,350 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 20:11:47,350 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 20:11:47,350 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 20:11:47,351 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 20:11:47,351 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 20:11:47,351 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 20:11:47,351 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 20:11:47,351 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 20:11:47,351 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 20:11:47,351 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 20:11:47,351 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 20:11:47,352 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 20:11:47,352 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 20:11:47,352 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 20:11:47,352 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 20:11:47,352 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 20:11:47,352 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 20:11:47,352 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 20:11:47,353 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 20:11:47,353 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 20:11:47,353 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 20:11:47,353 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 20:11:47,354 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 20:11:47,354 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_07dafd40-28ac-4626-a0dc-8e5882deec12/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 707f24c72c63346ec05641b1665aeeecec8225e6 [2018-12-01 20:11:47,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 20:11:47,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 20:11:47,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 20:11:47,382 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 20:11:47,382 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 20:11:47,382 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i [2018-12-01 20:11:47,425 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/data/69328bb1f/94ab77b8ab7e4661bfc273b23a3bf54a/FLAGfb0fdab2f [2018-12-01 20:11:47,864 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 20:11:47,864 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/sv-benchmarks/c/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i [2018-12-01 20:11:47,872 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/data/69328bb1f/94ab77b8ab7e4661bfc273b23a3bf54a/FLAGfb0fdab2f [2018-12-01 20:11:47,880 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/bin-2019/uautomizer/data/69328bb1f/94ab77b8ab7e4661bfc273b23a3bf54a [2018-12-01 20:11:47,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 20:11:47,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 20:11:47,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 20:11:47,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 20:11:47,885 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 20:11:47,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:11:47" (1/1) ... [2018-12-01 20:11:47,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c091ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:47, skipping insertion in model container [2018-12-01 20:11:47,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:11:47" (1/1) ... [2018-12-01 20:11:47,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 20:11:47,909 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 20:11:48,048 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:11:48,054 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 20:11:48,109 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:11:48,129 INFO L195 MainTranslator]: Completed translation [2018-12-01 20:11:48,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48 WrapperNode [2018-12-01 20:11:48,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 20:11:48,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 20:11:48,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 20:11:48,130 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 20:11:48,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 20:11:48,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 20:11:48,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 20:11:48,154 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 20:11:48,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... [2018-12-01 20:11:48,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 20:11:48,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 20:11:48,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 20:11:48,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 20:11:48,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07dafd40-28ac-4626-a0dc-8e5882deec12/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 [2018-12-01 20:11:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 20:11:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 20:11:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 20:11:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 20:11:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 20:11:48,304 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 20:11:48,304 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-01 20:11:48,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:11:48 BoogieIcfgContainer [2018-12-01 20:11:48,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 20:11:48,305 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 20:11:48,305 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 20:11:48,308 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 20:11:48,309 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:11:48,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 08:11:47" (1/3) ... [2018-12-01 20:11:48,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d22bb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:11:48, skipping insertion in model container [2018-12-01 20:11:48,310 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:11:48,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:11:48" (2/3) ... [2018-12-01 20:11:48,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d22bb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:11:48, skipping insertion in model container [2018-12-01 20:11:48,310 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:11:48,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:11:48" (3/3) ... [2018-12-01 20:11:48,311 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i [2018-12-01 20:11:48,342 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 20:11:48,343 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 20:11:48,343 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 20:11:48,343 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 20:11:48,343 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 20:11:48,343 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 20:11:48,343 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 20:11:48,343 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 20:11:48,343 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 20:11:48,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-12-01 20:11:48,367 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 20:11:48,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 20:11:48,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 20:11:48,374 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 20:11:48,374 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 20:11:48,374 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 20:11:48,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-12-01 20:11:48,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 20:11:48,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 20:11:48,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 20:11:48,376 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 20:11:48,376 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 20:11:48,382 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 11#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L557true assume !(main_~length~0 < 1); 6#L557-2true assume !(main_~n~0 < 1); 17#L560-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;cmemrchr_#in~s.base, cmemrchr_#in~s.offset, cmemrchr_#in~c, cmemrchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemrchr_#res.base, cmemrchr_#res.offset;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, cmemrchr_#t~mem4, cmemrchr_#t~pre2, cmemrchr_~s.base, cmemrchr_~s.offset, cmemrchr_~c, cmemrchr_~n, cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset;cmemrchr_~s.base, cmemrchr_~s.offset := cmemrchr_#in~s.base, cmemrchr_#in~s.offset;cmemrchr_~c := cmemrchr_#in~c;cmemrchr_~n := cmemrchr_#in~n;havoc cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset; 7#L544true assume 0 != cmemrchr_~n % 4294967296;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~s.base, cmemrchr_~s.offset + (if cmemrchr_~n % 4294967296 % 4294967296 <= 2147483647 then cmemrchr_~n % 4294967296 % 4294967296 else cmemrchr_~n % 4294967296 % 4294967296 - 4294967296); 12#L546-4true [2018-12-01 20:11:48,382 INFO L796 eck$LassoCheckResult]: Loop: 12#L546-4true cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset := cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset - 1;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset - 1;call cmemrchr_#t~mem4 := read~int(cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, 1); 3#L547true assume !(cmemrchr_#t~mem4 % 256 == cmemrchr_~c % 256);havoc cmemrchr_#t~mem4;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset; 5#L546-1true cmemrchr_#t~pre2 := cmemrchr_~n - 1;cmemrchr_~n := cmemrchr_~n - 1; 8#L546-2true assume !!(0 != cmemrchr_#t~pre2 % 4294967296);havoc cmemrchr_#t~pre2; 12#L546-4true [2018-12-01 20:11:48,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:11:48,386 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2018-12-01 20:11:48,387 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:11:48,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:11:48,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:11:48,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:11:48,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:11:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:11:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:11:48,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:11:48,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2018-12-01 20:11:48,470 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:11:48,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:11:48,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:11:48,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:11:48,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:11:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:11:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:11:48,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:11:48,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2018-12-01 20:11:48,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:11:48,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:11:48,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:11:48,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:11:48,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:11:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:11:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:11:48,872 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2018-12-01 20:11:48,880 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 20:11:48,880 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 20:11:48,881 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 20:11:48,881 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 20:11:48,881 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 20:11:48,881 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 20:11:48,881 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 20:11:48,881 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 20:11:48,881 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-12-01 20:11:48,881 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 20:11:48,882 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 20:11:48,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:48,940 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-12-01 20:11:49,118 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-12-01 20:11:49,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:49,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:49,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:49,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:49,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:11:49,483 WARN L180 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2018-12-01 20:11:49,591 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-12-01 20:11:50,211 WARN L180 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2018-12-01 20:11:50,259 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 20:11:50,262 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 20:11:50,263 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 [2018-12-01 20:11:50,264 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,264 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:11:50,265 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,265 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,265 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,266 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:11:50,266 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:11:50,268 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,268 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 [2018-12-01 20:11:50,268 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,268 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:11:50,268 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,268 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,269 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,269 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:11:50,269 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:11:50,270 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,270 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 [2018-12-01 20:11:50,270 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,270 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:11:50,270 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,270 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,271 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,271 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:11:50,271 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:11:50,271 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,272 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 [2018-12-01 20:11:50,272 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,272 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:11:50,272 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,272 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,273 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:11:50,273 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:11:50,273 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,273 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 [2018-12-01 20:11:50,274 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,274 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:11:50,274 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,274 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,274 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,274 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:11:50,274 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:11:50,275 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,275 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 [2018-12-01 20:11:50,275 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,275 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:11:50,275 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,276 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,276 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,276 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:11:50,276 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:11:50,276 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,277 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 [2018-12-01 20:11:50,277 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,277 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,277 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,277 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,278 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 20:11:50,278 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 20:11:50,280 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,281 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 [2018-12-01 20:11:50,281 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,281 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:11:50,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,282 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:11:50,282 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:11:50,282 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,282 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 [2018-12-01 20:11:50,283 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,283 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,283 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,283 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,284 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 20:11:50,284 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 20:11:50,286 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,286 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 [2018-12-01 20:11:50,287 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,287 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:11:50,287 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,287 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,287 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,287 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:11:50,287 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:11:50,288 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,288 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 [2018-12-01 20:11:50,288 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,288 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,289 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-01 20:11:50,289 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,294 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2018-12-01 20:11:50,294 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-01 20:11:50,323 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,324 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 [2018-12-01 20:11:50,324 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,324 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:11:50,324 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,324 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,325 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 20:11:50,325 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 20:11:50,326 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:11:50,327 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 [2018-12-01 20:11:50,327 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:11:50,327 INFO L205 nArgumentSynthesizer]: 4 stem disjuncts [2018-12-01 20:11:50,327 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:11:50,327 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:11:50,333 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-01 20:11:50,333 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 20:11:50,380 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 20:11:50,411 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-01 20:11:50,412 INFO L444 ModelExtractionUtils]: 50 out of 55 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-01 20:11:50,413 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 20:11:50,414 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-01 20:11:50,414 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 20:11:50,414 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemrchr_~cp~0.offset) = 1*ULTIMATE.start_cmemrchr_~cp~0.offset Supporting invariants [] [2018-12-01 20:11:50,422 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2018-12-01 20:11:50,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:11:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:11:50,451 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:11:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:11:50,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:11:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:11:50,490 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 [2018-12-01 20:11:50,491 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2018-12-01 20:11:50,521 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 40 transitions. Complement of second has 5 states. [2018-12-01 20:11:50,522 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 [2018-12-01 20:11:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 20:11:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-12-01 20:11:50,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-01 20:11:50,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 20:11:50,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 10 letters. Loop has 4 letters. [2018-12-01 20:11:50,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 20:11:50,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 8 letters. [2018-12-01 20:11:50,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 20:11:50,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2018-12-01 20:11:50,530 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 20:11:50,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2018-12-01 20:11:50,533 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 20:11:50,533 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 20:11:50,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 20:11:50,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 20:11:50,534 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 20:11:50,534 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 20:11:50,534 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 20:11:50,534 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 20:11:50,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 20:11:50,535 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 20:11:50,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 20:11:50,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 08:11:50 BoogieIcfgContainer [2018-12-01 20:11:50,540 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 20:11:50,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 20:11:50,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 20:11:50,541 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 20:11:50,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:11:48" (3/4) ... [2018-12-01 20:11:50,544 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 20:11:50,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 20:11:50,545 INFO L168 Benchmark]: Toolchain (without parser) took 2663.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 957.1 MB in the beginning and 865.1 MB in the end (delta: 92.0 MB). Peak memory consumption was 296.0 MB. Max. memory is 11.5 GB. [2018-12-01 20:11:50,546 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:11:50,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-01 20:11:50,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.16 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. [2018-12-01 20:11:50,547 INFO L168 Benchmark]: Boogie Preprocessor took 13.76 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. [2018-12-01 20:11:50,547 INFO L168 Benchmark]: RCFGBuilder took 136.41 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-01 20:11:50,548 INFO L168 Benchmark]: BuchiAutomizer took 2235.30 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 865.1 MB in the end (delta: 221.2 MB). Peak memory consumption was 304.0 MB. Max. memory is 11.5 GB. [2018-12-01 20:11:50,548 INFO L168 Benchmark]: Witness Printer took 3.83 ms. Allocated memory is still 1.2 GB. Free memory is still 865.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:11:50,551 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.16 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. * Boogie Preprocessor took 13.76 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 136.41 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2235.30 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 865.1 MB in the end (delta: 221.2 MB). Peak memory consumption was 304.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.83 ms. Allocated memory is still 1.2 GB. Free memory is still 865.1 MB. 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 cp and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. 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: 21 SDtfs, 21 SDslu, 8 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital238 mio100 ax100 hnf98 lsp85 ukn102 mio100 lsp149 div112 bol100 ite100 ukn100 eq182 hnf84 smp46 dnf453 smp52 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 3 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...