./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strchr_short_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strchr_short_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/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 fa76bf6b20245863a3a0ece612004b4f99489c23 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:09:59,569 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:09:59,571 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:09:59,579 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:09:59,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:09:59,580 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:09:59,582 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:09:59,583 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:09:59,584 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:09:59,585 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:09:59,585 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:09:59,585 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:09:59,586 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:09:59,587 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:09:59,588 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:09:59,588 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:09:59,589 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:09:59,591 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:09:59,592 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:09:59,593 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:09:59,594 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:09:59,595 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:09:59,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:09:59,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:09:59,598 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:09:59,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:09:59,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:09:59,599 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:09:59,600 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:09:59,602 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:09:59,602 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:09:59,602 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:09:59,602 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:09:59,603 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:09:59,603 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:09:59,604 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:09:59,604 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:09:59,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:09:59,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:09:59,617 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:09:59,618 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:09:59,618 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:09:59,618 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:09:59,618 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:09:59,618 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:09:59,618 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:09:59,619 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:09:59,619 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:09:59,619 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:09:59,619 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:09:59,619 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:09:59,619 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:09:59,619 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:09:59,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:09:59,620 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:09:59,620 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:09:59,620 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:09:59,620 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:09:59,620 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:09:59,621 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:09:59,622 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:09:59,623 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:09:59,623 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:09:59,623 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:09:59,624 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:09:59,624 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_e2a57561-ef2a-471e-8891-dcbfa3cb6112/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 -> fa76bf6b20245863a3a0ece612004b4f99489c23 [2018-10-27 06:09:59,650 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:09:59,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:09:59,667 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:09:59,668 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:09:59,669 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:09:59,670 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/strchr_short_true-termination.c.i [2018-10-27 06:09:59,719 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/data/3a6fa3bcd/ee75704a11e24e0187ade0918f5f83e8/FLAG6125bc41f [2018-10-27 06:10:00,169 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:10:00,169 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/sv-benchmarks/c/termination-libowfat/strchr_short_true-termination.c.i [2018-10-27 06:10:00,183 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/data/3a6fa3bcd/ee75704a11e24e0187ade0918f5f83e8/FLAG6125bc41f [2018-10-27 06:10:00,200 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/bin-2019/uautomizer/data/3a6fa3bcd/ee75704a11e24e0187ade0918f5f83e8 [2018-10-27 06:10:00,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:10:00,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:10:00,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:10:00,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:10:00,208 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:10:00,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a2bab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00, skipping insertion in model container [2018-10-27 06:10:00,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:10:00,261 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:10:00,547 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:10:00,557 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:10:00,604 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:10:00,642 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:10:00,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00 WrapperNode [2018-10-27 06:10:00,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:10:00,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:10:00,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:10:00,643 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:10:00,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:10:00,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:10:00,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:10:00,736 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:10:00,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... [2018-10-27 06:10:00,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:10:00,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:10:00,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:10:00,759 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:10:00,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e2a57561-ef2a-471e-8891-dcbfa3cb6112/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 [2018-10-27 06:10:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 06:10:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 06:10:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:10:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:10:01,110 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:10:01,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:01 BoogieIcfgContainer [2018-10-27 06:10:01,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:10:01,111 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:10:01,112 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:10:01,115 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:10:01,116 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:01,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:10:00" (1/3) ... [2018-10-27 06:10:01,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16644440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:10:01, skipping insertion in model container [2018-10-27 06:10:01,117 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:01,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:00" (2/3) ... [2018-10-27 06:10:01,118 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16644440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:10:01, skipping insertion in model container [2018-10-27 06:10:01,118 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:01,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:01" (3/3) ... [2018-10-27 06:10:01,119 INFO L375 chiAutomizerObserver]: Analyzing ICFG strchr_short_true-termination.c.i [2018-10-27 06:10:01,165 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:10:01,165 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:10:01,165 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:10:01,165 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:10:01,165 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:10:01,166 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:10:01,166 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:10:01,166 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:10:01,166 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:10:01,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-10-27 06:10:01,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-10-27 06:10:01,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:01,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:01,203 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-10-27 06:10:01,203 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:10:01,203 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:10:01,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-10-27 06:10:01,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-10-27 06:10:01,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:01,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:01,205 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-10-27 06:10:01,205 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:10:01,212 INFO L793 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 3#L516true assume !(main_~in_len~0 < 1);#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~in_len~0;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset; 13#L518true SUMMARY for call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1) * 1, 1); srcloc: L518 16#L518-1true main_~the_int~0 := main_#t~nondet7;havoc main_#t~nondet7;assume { :begin_inline_strchr } true;strchr_#in~t.base, strchr_#in~t.offset, strchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strchr_#res.base, strchr_#res.offset;havoc strchr_#t~mem2, strchr_#t~mem3, strchr_#t~pre4.base, strchr_#t~pre4.offset, strchr_~t.base, strchr_~t.offset, strchr_~c, strchr_~ch~0;strchr_~t.base, strchr_~t.offset := strchr_#in~t.base, strchr_#in~t.offset;strchr_~c := strchr_#in~c;havoc strchr_~ch~0;strchr_~ch~0 := (if strchr_~c % 256 <= 127 then strchr_~c % 256 else strchr_~c % 256 - 256); 17#L509-3true [2018-10-27 06:10:01,212 INFO L795 eck$LassoCheckResult]: Loop: 17#L509-3true assume true; 12#L509-1true assume !false; 7#L510true SUMMARY for call strchr_#t~mem2 := read~int(strchr_~t.base, strchr_~t.offset, 1); srcloc: L510 10#L510-1true assume !(strchr_#t~mem2 == strchr_~ch~0);havoc strchr_#t~mem2; 14#L510-3true SUMMARY for call strchr_#t~mem3 := read~int(strchr_~t.base, strchr_~t.offset, 1); srcloc: L510-3 18#L510-4true assume !(strchr_#t~mem3 == 0);havoc strchr_#t~mem3;strchr_#t~pre4.base, strchr_#t~pre4.offset := strchr_~t.base, strchr_~t.offset + 1;strchr_~t.base, strchr_~t.offset := strchr_~t.base, strchr_~t.offset + 1;havoc strchr_#t~pre4.base, strchr_#t~pre4.offset; 17#L509-3true [2018-10-27 06:10:01,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:01,217 INFO L82 PathProgramCache]: Analyzing trace with hash 28695717, now seen corresponding path program 1 times [2018-10-27 06:10:01,219 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:01,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:01,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:01,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:01,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:01,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:01,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1276895920, now seen corresponding path program 1 times [2018-10-27 06:10:01,315 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:01,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:01,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:01,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:01,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:01,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:01,327 INFO L82 PathProgramCache]: Analyzing trace with hash 813347924, now seen corresponding path program 1 times [2018-10-27 06:10:01,327 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:01,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:01,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:01,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:01,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:01,479 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-10-27 06:10:02,067 WARN L179 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2018-10-27 06:10:02,554 WARN L179 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-10-27 06:10:02,561 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:02,562 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:02,562 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:02,562 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:02,563 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:10:02,563 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:02,563 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:02,563 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:02,563 INFO L131 ssoRankerPreferences]: Filename of dumped script: strchr_short_true-termination.c.i_Iteration1_Lasso [2018-10-27 06:10:02,563 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:02,563 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:02,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:02,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:03,071 WARN L179 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2018-10-27 06:10:03,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:03,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:03,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:03,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:03,348 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-10-27 06:10:03,618 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-27 06:10:03,806 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:03,811 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:10:03,812 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 [2018-10-27 06:10:03,814 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,815 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:03,815 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,815 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,816 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,818 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:03,818 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:03,826 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,827 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 [2018-10-27 06:10:03,828 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,829 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:03,829 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,829 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,829 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,830 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:03,830 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:03,831 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,831 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 [2018-10-27 06:10:03,832 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,832 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:03,832 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,832 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,832 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,835 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:03,836 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:03,837 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,840 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:10:03,842 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,843 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:03,843 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,843 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,843 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,843 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:03,844 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:03,844 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,845 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 [2018-10-27 06:10:03,845 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,845 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:03,846 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,846 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,846 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,846 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:03,846 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:03,847 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,847 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:10:03,848 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,848 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,848 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,848 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,859 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:03,862 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:03,866 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,866 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 [2018-10-27 06:10:03,867 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,867 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:03,867 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,867 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,867 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,868 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:03,868 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:03,885 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,886 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 [2018-10-27 06:10:03,886 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,886 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:03,887 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,887 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,887 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,887 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:03,887 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:03,888 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,888 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 [2018-10-27 06:10:03,890 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,891 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,891 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,891 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,892 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:03,892 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:03,896 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,896 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:10:03,897 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,904 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,905 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,905 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,907 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:03,907 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:03,921 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,921 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 [2018-10-27 06:10:03,922 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,922 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,922 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,922 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,924 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:03,924 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:03,941 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,942 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 [2018-10-27 06:10:03,942 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,942 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:03,942 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:03,942 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,946 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:03,946 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:03,953 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:03,954 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 [2018-10-27 06:10:03,954 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:03,954 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-10-27 06:10:03,955 INFO L206 nArgumentSynthesizer]: 4 loop disjuncts [2018-10-27 06:10:03,955 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:03,977 INFO L402 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2018-10-27 06:10:03,977 INFO L403 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2018-10-27 06:10:04,112 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:04,119 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 [2018-10-27 06:10:04,121 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:04,121 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:04,121 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:04,121 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:04,125 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:04,125 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:04,159 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:10:04,171 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:10:04,172 INFO L444 ModelExtractionUtils]: 24 out of 31 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:10:04,173 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:10:04,174 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-10-27 06:10:04,175 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:10:04,175 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strchr_~t.offset, v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1) = -1*ULTIMATE.start_strchr_~t.offset + 1*v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1 Supporting invariants [] [2018-10-27 06:10:04,243 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-10-27 06:10:04,249 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 06:10:04,250 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-10-27 06:10:04,250 WARN L1239 BoogieBacktranslator]: unknown boogie variable #Ultimate.alloc_#res [2018-10-27 06:10:04,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:04,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:04,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:04,367 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-10-27 06:10:04,368 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2018-10-27 06:10:04,424 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 35 states and 40 transitions. Complement of second has 8 states. [2018-10-27 06:10:04,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-10-27 06:10:04,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:10:04,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 26 transitions. [2018-10-27 06:10:04,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 5 letters. Loop has 6 letters. [2018-10-27 06:10:04,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:04,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 11 letters. Loop has 6 letters. [2018-10-27 06:10:04,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:04,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 26 transitions. Stem has 5 letters. Loop has 12 letters. [2018-10-27 06:10:04,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:04,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2018-10-27 06:10:04,431 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:04,433 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2018-10-27 06:10:04,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:10:04,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:10:04,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:10:04,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:10:04,434 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:04,434 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:04,434 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:04,434 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:10:04,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:10:04,435 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:04,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:10:04,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:10:04 BoogieIcfgContainer [2018-10-27 06:10:04,440 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:10:04,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:10:04,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:10:04,440 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:10:04,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:01" (3/4) ... [2018-10-27 06:10:04,443 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:10:04,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:10:04,444 INFO L168 Benchmark]: Toolchain (without parser) took 4241.26 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 956.6 MB in the beginning and 1.2 GB in the end (delta: -207.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:04,445 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:04,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.03 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 935.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:04,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 935.1 MB in the beginning and 1.2 GB in the end (delta: -220.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:04,447 INFO L168 Benchmark]: Boogie Preprocessor took 23.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:04,447 INFO L168 Benchmark]: RCFGBuilder took 352.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:04,447 INFO L168 Benchmark]: BuchiAutomizer took 3328.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -32.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:04,448 INFO L168 Benchmark]: Witness Printer took 3.59 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:04,451 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 438.03 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 935.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 935.1 MB in the beginning and 1.2 GB in the end (delta: -220.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 352.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3328.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -32.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.59 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #Ultimate.alloc_#res * 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 -1 * t + unknown-#length-unknown[#Ultimate.alloc_#res] and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. 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: 14 SDtfs, 25 SDslu, 14 SDs, 0 SdLazy, 10 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital248 mio100 ax100 hnf99 lsp70 ukn133 mio100 lsp27 div139 bol100 ite100 ukn100 eq158 hnf72 smp83 dnf251 smp56 tf100 neg93 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 158ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 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...