./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/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 1d83513923275fb998d84bf280079335d55bfc99 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:04:33,498 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:04:33,499 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:04:33,507 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:04:33,507 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:04:33,508 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:04:33,508 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:04:33,509 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:04:33,511 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:04:33,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:04:33,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:04:33,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:04:33,513 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:04:33,513 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:04:33,514 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:04:33,515 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:04:33,515 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:04:33,517 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:04:33,519 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:04:33,520 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:04:33,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:04:33,522 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:04:33,523 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:04:33,523 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:04:33,523 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:04:33,524 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:04:33,525 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:04:33,526 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:04:33,526 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:04:33,527 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:04:33,527 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:04:33,527 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:04:33,528 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:04:33,528 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:04:33,528 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:04:33,529 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:04:33,529 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 13:04:33,541 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:04:33,541 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:04:33,542 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:04:33,542 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:04:33,543 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:04:33,543 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:04:33,543 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:04:33,543 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:04:33,543 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:04:33,543 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:04:33,543 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:04:33,544 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:04:33,544 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:04:33,544 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:04:33,544 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:04:33,544 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:04:33,544 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:04:33,545 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:04:33,545 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:04:33,545 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:04:33,545 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:04:33,547 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:04:33,547 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:04:33,547 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:04:33,547 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:04:33,547 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:04:33,547 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:04:33,548 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:04:33,548 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:04:33,548 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_aedba0e0-38d9-494c-a3da-89d1e1cb06be/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 -> 1d83513923275fb998d84bf280079335d55bfc99 [2018-11-28 13:04:33,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:04:33,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:04:33,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:04:33,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:04:33,588 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:04:33,588 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca_true-termination.c.i [2018-11-28 13:04:33,632 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/data/c368d4487/dcb019e9da29404aaeadf5cd47e3482a/FLAGe7c33f886 [2018-11-28 13:04:34,068 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:04:34,069 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca_true-termination.c.i [2018-11-28 13:04:34,077 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/data/c368d4487/dcb019e9da29404aaeadf5cd47e3482a/FLAGe7c33f886 [2018-11-28 13:04:34,087 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/bin-2019/uautomizer/data/c368d4487/dcb019e9da29404aaeadf5cd47e3482a [2018-11-28 13:04:34,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:04:34,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:04:34,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:04:34,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:04:34,092 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:04:34,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58dfd34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34, skipping insertion in model container [2018-11-28 13:04:34,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:04:34,123 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:04:34,299 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:04:34,349 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:04:34,378 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:04:34,400 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:04:34,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34 WrapperNode [2018-11-28 13:04:34,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:04:34,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:04:34,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:04:34,401 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:04:34,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:04:34,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:04:34,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:04:34,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:04:34,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... [2018-11-28 13:04:34,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:04:34,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:04:34,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:04:34,441 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:04:34,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aedba0e0-38d9-494c-a3da-89d1e1cb06be/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 [2018-11-28 13:04:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:04:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:04:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:04:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:04:34,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:04:34,613 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:04:34,613 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-28 13:04:34,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:04:34 BoogieIcfgContainer [2018-11-28 13:04:34,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:04:34,614 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:04:34,614 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:04:34,617 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:04:34,618 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:04:34,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:04:34" (1/3) ... [2018-11-28 13:04:34,619 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cb43a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:04:34, skipping insertion in model container [2018-11-28 13:04:34,619 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:04:34,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:04:34" (2/3) ... [2018-11-28 13:04:34,619 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cb43a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:04:34, skipping insertion in model container [2018-11-28 13:04:34,619 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:04:34,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:04:34" (3/3) ... [2018-11-28 13:04:34,621 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemrchr-alloca_true-termination.c.i [2018-11-28 13:04:34,653 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:04:34,654 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:04:34,654 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:04:34,654 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:04:34,654 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:04:34,654 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:04:34,654 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:04:34,654 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:04:34,654 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:04:34,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-28 13:04:34,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 13:04:34,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:04:34,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:04:34,683 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 13:04:34,684 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 13:04:34,684 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:04:34,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-28 13:04:34,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 13:04:34,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:04:34,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:04:34,686 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 13:04:34,686 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 13:04:34,692 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 6#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 7#L564true assume !(main_~length~0 < 1); 10#L564-2true assume !(main_~n~0 < 1); 4#L567-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;cmemrchr_#in~s.base, cmemrchr_#in~s.offset, cmemrchr_#in~c, cmemrchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemrchr_#res.base, cmemrchr_#res.offset;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, cmemrchr_#t~mem4, cmemrchr_#t~pre2, cmemrchr_~s.base, cmemrchr_~s.offset, cmemrchr_~c, cmemrchr_~n, cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset;cmemrchr_~s.base, cmemrchr_~s.offset := cmemrchr_#in~s.base, cmemrchr_#in~s.offset;cmemrchr_~c := cmemrchr_#in~c;cmemrchr_~n := cmemrchr_#in~n;havoc cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset; 11#L551true assume 0 != cmemrchr_~n % 4294967296;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~s.base, cmemrchr_~s.offset + cmemrchr_~n % 4294967296; 17#L553-4true [2018-11-28 13:04:34,693 INFO L796 eck$LassoCheckResult]: Loop: 17#L553-4true 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); 5#L554true assume !(cmemrchr_#t~mem4 % 256 == cmemrchr_~c % 256);havoc cmemrchr_#t~mem4;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset; 9#L553-1true cmemrchr_#t~pre2 := cmemrchr_~n - 1;cmemrchr_~n := cmemrchr_~n - 1; 12#L553-2true assume !!(0 != cmemrchr_#t~pre2 % 4294967296);havoc cmemrchr_#t~pre2; 17#L553-4true [2018-11-28 13:04:34,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:04:34,697 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2018-11-28 13:04:34,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:04:34,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:04:34,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:04:34,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:04:34,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:04:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:04:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:04:34,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:04:34,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2018-11-28 13:04:34,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:04:34,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:04:34,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:04:34,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:04:34,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:04:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:04:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:04:34,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:04:34,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2018-11-28 13:04:34,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:04:34,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:04:34,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:04:34,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:04:34,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:04:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:04:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:04:35,058 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:04:35,059 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:04:35,060 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:04:35,060 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:04:35,060 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:04:35,060 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:04:35,060 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:04:35,060 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:04:35,060 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemrchr-alloca_true-termination.c.i_Iteration1_Lasso [2018-11-28 13:04:35,061 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:04:35,061 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:04:35,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,247 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-11-28 13:04:35,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:04:35,731 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:04:35,736 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:04:35,737 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 [2018-11-28 13:04:35,739 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,739 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:04:35,739 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,739 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,740 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,741 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:04:35,741 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:04:35,743 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,743 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 [2018-11-28 13:04:35,744 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,744 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:04:35,744 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,744 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,744 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,745 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:04:35,745 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:04:35,746 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,746 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 [2018-11-28 13:04:35,747 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,747 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:04:35,747 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,747 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,747 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,748 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:04:35,748 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:04:35,748 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,749 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 [2018-11-28 13:04:35,749 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,749 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:04:35,750 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,750 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,750 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,750 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:04:35,751 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:04:35,751 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,752 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 [2018-11-28 13:04:35,752 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,752 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:04:35,752 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,752 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,753 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,753 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:04:35,753 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:04:35,754 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,754 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 [2018-11-28 13:04:35,754 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,754 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:04:35,755 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,755 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,755 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,755 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:04:35,755 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:04:35,756 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,756 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 [2018-11-28 13:04:35,757 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,757 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,757 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,757 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,758 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:04:35,759 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:04:35,760 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,761 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 [2018-11-28 13:04:35,761 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,761 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,762 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,762 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,763 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:04:35,763 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:04:35,766 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,767 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 [2018-11-28 13:04:35,767 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,767 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:04:35,767 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,768 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,768 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,768 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:04:35,768 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:04:35,769 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,769 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 [2018-11-28 13:04:35,769 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,770 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,770 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,770 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,771 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:04:35,771 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:04:35,774 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,774 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 [2018-11-28 13:04:35,774 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,775 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:04:35,775 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,775 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,775 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,777 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:04:35,777 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:04:35,778 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:04:35,779 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 [2018-11-28 13:04:35,779 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:04:35,780 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:04:35,780 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:04:35,780 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:04:35,787 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:04:35,787 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:04:35,842 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:04:35,860 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 13:04:35,861 INFO L444 ModelExtractionUtils]: 26 out of 34 variables were initially zero. Simplification set additionally 6 variables to zero. [2018-11-28 13:04:35,862 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:04:35,864 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 13:04:35,864 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:04:35,864 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 [] [2018-11-28 13:04:35,898 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2018-11-28 13:04:35,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:04:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:04:35,944 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:04:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:04:35,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:04:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:04:35,992 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 [2018-11-28 13:04:35,993 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2018-11-28 13:04:36,025 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. [2018-11-28 13:04:36,025 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 [2018-11-28 13:04:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:04:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-28 13:04:36,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-28 13:04:36,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:04:36,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-28 13:04:36,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:04:36,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 8 letters. [2018-11-28 13:04:36,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:04:36,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2018-11-28 13:04:36,033 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:04:36,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2018-11-28 13:04:36,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:04:36,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:04:36,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:04:36,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:04:36,036 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:04:36,036 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:04:36,036 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:04:36,036 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:04:36,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:04:36,037 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:04:36,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 13:04:36,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:04:36 BoogieIcfgContainer [2018-11-28 13:04:36,041 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:04:36,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:04:36,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:04:36,042 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:04:36,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:04:34" (3/4) ... [2018-11-28 13:04:36,044 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:04:36,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:04:36,045 INFO L168 Benchmark]: Toolchain (without parser) took 1955.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.3 MB in the beginning and 862.8 MB in the end (delta: 92.5 MB). Peak memory consumption was 238.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:04:36,046 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:04:36,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:04:36,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.13 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. [2018-11-28 13:04:36,047 INFO L168 Benchmark]: Boogie Preprocessor took 14.47 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. [2018-11-28 13:04:36,047 INFO L168 Benchmark]: RCFGBuilder took 172.44 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:04:36,048 INFO L168 Benchmark]: BuchiAutomizer took 1427.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 862.8 MB in the end (delta: 248.8 MB). Peak memory consumption was 248.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:04:36,048 INFO L168 Benchmark]: Witness Printer took 2.97 ms. Allocated memory is still 1.2 GB. Free memory is still 862.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:04:36,051 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.13 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 14.47 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 172.44 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1427.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 862.8 MB in the end (delta: 248.8 MB). Peak memory consumption was 248.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 ms. Allocated memory is still 1.2 GB. Free memory is still 862.8 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 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 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: inital140 mio100 ax112 hnf98 lsp82 ukn97 mio100 lsp57 div208 bol100 ite100 ukn100 eq167 hnf63 smp91 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 4ms 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...