./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a94bf9d893e116ed4626eae9cec69d948eb5bc31 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:57:40,534 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:57:40,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:57:40,547 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:57:40,548 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:57:40,549 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:57:40,550 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:57:40,552 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:57:40,554 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:57:40,554 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:57:40,555 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:57:40,556 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:57:40,557 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:57:40,558 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:57:40,559 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:57:40,560 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:57:40,560 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:57:40,562 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:57:40,564 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:57:40,565 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:57:40,566 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:57:40,568 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:57:40,570 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:57:40,570 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:57:40,570 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:57:40,571 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:57:40,572 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:57:40,573 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:57:40,574 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:57:40,575 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:57:40,575 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:57:40,576 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:57:40,576 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:57:40,577 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:57:40,578 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:57:40,578 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:57:40,579 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:57:40,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:57:40,591 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:57:40,592 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:57:40,592 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:57:40,592 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:57:40,593 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:57:40,593 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:57:40,593 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:57:40,593 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:57:40,593 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:57:40,594 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:57:40,594 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:57:40,594 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:57:40,594 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:57:40,594 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:57:40,595 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:57:40,595 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:57:40,595 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:57:40,595 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:57:40,595 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:57:40,596 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:57:40,596 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:57:40,596 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:57:40,596 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:57:40,596 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:57:40,597 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:57:40,597 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:57:40,597 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:57:40,597 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:57:40,597 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:57:40,597 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:57:40,598 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:57:40,599 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_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94bf9d893e116ed4626eae9cec69d948eb5bc31 [2018-11-18 16:57:40,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:57:40,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:57:40,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:57:40,650 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:57:40,650 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:57:40,651 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i [2018-11-18 16:57:40,721 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/data/991e3c1cf/4fed64c0c9984db3bd159778d94b7cdb/FLAGedc8c2b0e [2018-11-18 16:57:41,107 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:57:41,107 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/sv-benchmarks/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i [2018-11-18 16:57:41,113 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/data/991e3c1cf/4fed64c0c9984db3bd159778d94b7cdb/FLAGedc8c2b0e [2018-11-18 16:57:41,128 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/data/991e3c1cf/4fed64c0c9984db3bd159778d94b7cdb [2018-11-18 16:57:41,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:57:41,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:57:41,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:57:41,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:57:41,137 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:57:41,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dff18a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41, skipping insertion in model container [2018-11-18 16:57:41,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:57:41,166 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:57:41,296 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:57:41,299 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:57:41,312 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:57:41,323 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:57:41,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41 WrapperNode [2018-11-18 16:57:41,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:57:41,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:57:41,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:57:41,324 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:57:41,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:57:41,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:57:41,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:57:41,359 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:57:41,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... [2018-11-18 16:57:41,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:57:41,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:57:41,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:57:41,381 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:57:41,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/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 [2018-11-18 16:57:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:57:41,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:57:41,741 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:57:41,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:41 BoogieIcfgContainer [2018-11-18 16:57:41,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:57:41,743 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:57:41,743 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:57:41,748 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:57:41,750 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:57:41,751 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:57:41" (1/3) ... [2018-11-18 16:57:41,752 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@120fbb5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:57:41, skipping insertion in model container [2018-11-18 16:57:41,752 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:57:41,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:57:41" (2/3) ... [2018-11-18 16:57:41,753 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@120fbb5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:57:41, skipping insertion in model container [2018-11-18 16:57:41,753 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:57:41,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:41" (3/3) ... [2018-11-18 16:57:41,755 INFO L375 chiAutomizerObserver]: Analyzing ICFG fragtest_simple_true-unreach-call_true-termination.i [2018-11-18 16:57:41,827 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:57:41,827 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:57:41,827 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:57:41,828 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:57:41,828 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:57:41,828 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:57:41,828 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:57:41,828 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:57:41,828 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:57:41,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2018-11-18 16:57:41,866 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-18 16:57:41,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:57:41,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:57:41,873 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 16:57:41,873 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 16:57:41,874 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:57:41,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2018-11-18 16:57:41,875 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-18 16:57:41,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:57:41,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:57:41,876 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 16:57:41,876 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 16:57:41,884 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 19#L17-3true [2018-11-18 16:57:41,884 INFO L796 eck$LassoCheckResult]: Loop: 19#L17-3true assume true; 4#L17-1true assume !!(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2;main_~i~0 := 1 + main_~i~0; 19#L17-3true [2018-11-18 16:57:41,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:41,890 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 16:57:41,892 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:41,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:41,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:41,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:41,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:41,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:41,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1159, now seen corresponding path program 1 times [2018-11-18 16:57:41,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:41,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:41,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:41,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:41,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:42,010 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-18 16:57:42,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:42,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:42,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:42,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,121 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:57:42,122 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:57:42,122 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:57:42,122 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:57:42,122 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:57:42,123 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,123 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:57:42,123 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:57:42,123 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-18 16:57:42,126 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:57:42,127 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:57:42,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:42,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:42,215 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:57:42,216 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,226 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:57:42,227 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:57:42,235 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:57:42,235 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=7} Honda state: {ULTIMATE.start_main_#t~nondet2=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,256 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:57:42,257 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,284 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:57:42,285 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:57:42,309 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:57:42,311 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:57:42,311 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:57:42,311 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:57:42,312 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:57:42,312 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:57:42,312 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,312 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:57:42,312 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:57:42,312 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-18 16:57:42,313 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:57:42,313 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:57:42,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:42,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:42,436 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:57:42,440 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:57:42,442 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 [2018-11-18 16:57:42,443 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:57:42,443 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:57:42,444 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:57:42,444 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 16:57:42,444 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:57:42,447 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 16:57:42,447 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:57:42,455 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:57:42,456 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 [2018-11-18 16:57:42,457 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:57:42,457 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:57:42,457 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:57:42,458 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:57:42,459 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:57:42,460 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:57:42,461 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:57:42,467 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:57:42,471 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:57:42,472 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 16:57:42,474 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:57:42,474 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:57:42,474 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:57:42,475 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2018-11-18 16:57:42,476 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:57:42,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:42,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:42,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:42,581 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 16:57:42,583 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states. Second operand 3 states. [2018-11-18 16:57:42,656 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states.. Second operand 3 states. Result 38 states and 55 transitions. Complement of second has 6 states. [2018-11-18 16:57:42,657 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 [2018-11-18 16:57:42,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 16:57:42,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2018-11-18 16:57:42,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-18 16:57:42,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:42,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 16:57:42,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:42,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-18 16:57:42,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:42,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2018-11-18 16:57:42,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:57:42,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 17 states and 23 transitions. [2018-11-18 16:57:42,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-18 16:57:42,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-18 16:57:42,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2018-11-18 16:57:42,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:57:42,673 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-18 16:57:42,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2018-11-18 16:57:42,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 16:57:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 16:57:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2018-11-18 16:57:42,696 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-18 16:57:42,696 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-18 16:57:42,696 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:57:42,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2018-11-18 16:57:42,697 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:57:42,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:57:42,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:57:42,698 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 16:57:42,698 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 16:57:42,698 INFO L794 eck$LassoCheckResult]: Stem: 108#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 106#L17-3 assume true; 95#L17-1 assume !(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2; 96#L17-4 assume !(main_~i~0 > main_~pvlen~0); 101#L20-1 main_~i~0 := 0; 102#L24-3 [2018-11-18 16:57:42,698 INFO L796 eck$LassoCheckResult]: Loop: 102#L24-3 assume true; 107#L24-1 assume !!(0 != main_#t~nondet3 && main_~i~0 <= 1000000);havoc main_#t~nondet3;main_~tmp___1~0 := main_~i~0;main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 102#L24-3 [2018-11-18 16:57:42,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:42,699 INFO L82 PathProgramCache]: Analyzing trace with hash 889539721, now seen corresponding path program 1 times [2018-11-18 16:57:42,699 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:42,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:42,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:42,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:42,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1799, now seen corresponding path program 1 times [2018-11-18 16:57:42,708 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:42,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:42,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:42,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:42,718 INFO L82 PathProgramCache]: Analyzing trace with hash 149180815, now seen corresponding path program 1 times [2018-11-18 16:57:42,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:42,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:42,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:42,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:42,772 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:57:42,772 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:57:42,772 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:57:42,772 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:57:42,772 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:57:42,772 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,772 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:57:42,772 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:57:42,772 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-18 16:57:42,772 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:57:42,773 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:57:42,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:42,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:42,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:42,926 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:57:42,926 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,931 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:57:42,931 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,964 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:57:42,965 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:57:42,978 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:57:42,978 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=-1}, {ULTIMATE.start_main_~k~0=1}, {ULTIMATE.start_main_~k~0=1}] Lambdas: [2, 0, 1] Nus: [1, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:42,999 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:57:42,999 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:43,032 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:57:43,032 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:57:43,058 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:57:43,060 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:57:43,060 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:57:43,060 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:57:43,060 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:57:43,060 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:57:43,060 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:43,060 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:57:43,060 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:57:43,060 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-18 16:57:43,061 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:57:43,061 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:57:43,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:43,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:43,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:43,106 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:57:43,106 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:57:43,107 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 [2018-11-18 16:57:43,108 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:57:43,108 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:57:43,108 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:57:43,108 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:57:43,108 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:57:43,109 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:57:43,109 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:57:43,113 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:57:43,113 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 [2018-11-18 16:57:43,114 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:57:43,114 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:57:43,114 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:57:43,115 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:57:43,115 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:57:43,116 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:57:43,116 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:57:43,122 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:57:43,126 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:57:43,126 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 16:57:43,127 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:57:43,127 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:57:43,127 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:57:43,127 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2018-11-18 16:57:43,128 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:57:43,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:43,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:43,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:43,205 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 16:57:43,205 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-18 16:57:43,272 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 37 states and 47 transitions. Complement of second has 6 states. [2018-11-18 16:57:43,273 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 [2018-11-18 16:57:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 16:57:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-11-18 16:57:43,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 16:57:43,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:43,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-18 16:57:43,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:43,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-18 16:57:43,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:43,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2018-11-18 16:57:43,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 16:57:43,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 23 states and 29 transitions. [2018-11-18 16:57:43,278 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-18 16:57:43,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-18 16:57:43,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2018-11-18 16:57:43,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:57:43,279 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2018-11-18 16:57:43,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2018-11-18 16:57:43,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-18 16:57:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 16:57:43,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2018-11-18 16:57:43,282 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2018-11-18 16:57:43,282 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2018-11-18 16:57:43,282 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:57:43,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2018-11-18 16:57:43,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 16:57:43,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:57:43,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:57:43,283 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:43,284 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 16:57:43,284 INFO L794 eck$LassoCheckResult]: Stem: 209#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 204#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 205#L17-3 assume true; 194#L17-1 assume !(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2; 195#L17-4 assume !(main_~i~0 > main_~pvlen~0); 200#L20-1 main_~i~0 := 0; 201#L24-3 assume true; 207#L24-1 assume !(0 != main_#t~nondet3 && main_~i~0 <= 1000000);havoc main_#t~nondet3; 203#L24-4 main_~j~0 := 0;main_~n~0 := main_~i~0; 198#L31-3 assume true; 199#L31-1 assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 202#L4 assume !(0 == __VERIFIER_assert_~cond); 193#L4-2 [2018-11-18 16:57:43,284 INFO L796 eck$LassoCheckResult]: Loop: 193#L4-2 assume { :end_inline___VERIFIER_assert } true;main_~k~0 := main_~k~0 - 1;main_~i~0 := main_~i~0 - 1;main_~j~0 := 1 + main_~j~0; 210#L36 assume !(main_~j~0 >= main_~n~0); 211#L31-3 assume true; 213#L31-1 assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 212#L4 assume !(0 == __VERIFIER_assert_~cond); 193#L4-2 [2018-11-18 16:57:43,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:43,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1948761176, now seen corresponding path program 1 times [2018-11-18 16:57:43,284 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:43,285 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:43,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:43,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:43,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:43,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:43,301 INFO L82 PathProgramCache]: Analyzing trace with hash 82203497, now seen corresponding path program 1 times [2018-11-18 16:57:43,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:43,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:43,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:43,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:43,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:43,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:43,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1957279090, now seen corresponding path program 1 times [2018-11-18 16:57:43,313 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:57:43,313 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:57:43,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:43,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:43,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:43,488 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:43,488 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:43,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:43,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:43,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:57:43,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2018-11-18 16:57:43,749 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:57:43,749 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:57:43,749 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:57:43,749 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:57:43,749 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:57:43,749 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:43,750 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:57:43,750 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:57:43,750 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-18 16:57:43,750 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:57:43,750 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:57:43,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:43,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:43,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:43,882 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:57:43,882 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:43,885 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:57:43,886 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d040f8e7-3545-48da-b51a-2f7f81ab72c4/bin-2019/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:43,908 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:57:43,908 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:57:44,220 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:57:44,222 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:57:44,222 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:57:44,222 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:57:44,222 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:57:44,222 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:57:44,223 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:57:44,223 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:57:44,223 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:57:44,223 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-18 16:57:44,223 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:57:44,223 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:57:44,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:44,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:44,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:57:44,330 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:57:44,330 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:57:44,330 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 [2018-11-18 16:57:44,331 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:57:44,331 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:57:44,332 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:57:44,332 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:57:44,332 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:57:44,332 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:57:44,333 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:57:44,336 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:57:44,339 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:57:44,339 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:57:44,340 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:57:44,340 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:57:44,340 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:57:44,340 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2018-11-18 16:57:44,341 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:57:44,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:44,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:44,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:44,430 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 16:57:44,430 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-18 16:57:44,448 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 35 states and 42 transitions. Complement of second has 7 states. [2018-11-18 16:57:44,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 16:57:44,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:57:44,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2018-11-18 16:57:44,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 12 letters. Loop has 5 letters. [2018-11-18 16:57:44,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:44,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 17 letters. Loop has 5 letters. [2018-11-18 16:57:44,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:44,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 12 letters. Loop has 10 letters. [2018-11-18 16:57:44,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:57:44,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2018-11-18 16:57:44,454 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 16:57:44,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2018-11-18 16:57:44,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 16:57:44,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 16:57:44,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 16:57:44,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:57:44,455 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:57:44,455 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:57:44,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:57:44,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:57:44,459 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 8 states. [2018-11-18 16:57:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:44,461 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 16:57:44,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:57:44,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-18 16:57:44,462 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 16:57:44,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:57:44,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 16:57:44,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 16:57:44,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 16:57:44,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:57:44,463 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:57:44,463 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:57:44,463 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:57:44,463 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:57:44,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:57:44,463 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 16:57:44,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 16:57:44,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:57:44 BoogieIcfgContainer [2018-11-18 16:57:44,469 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:57:44,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:57:44,470 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:57:44,470 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:57:44,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:57:41" (3/4) ... [2018-11-18 16:57:44,474 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:57:44,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:57:44,475 INFO L168 Benchmark]: Toolchain (without parser) took 3343.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 958.5 MB in the beginning and 932.6 MB in the end (delta: 25.9 MB). Peak memory consumption was 183.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:44,476 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:44,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.68 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:44,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.91 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:44,478 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:44,478 INFO L168 Benchmark]: RCFGBuilder took 362.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:44,479 INFO L168 Benchmark]: BuchiAutomizer took 2726.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 932.6 MB in the end (delta: 206.2 MB). Peak memory consumption was 206.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:44,481 INFO L168 Benchmark]: Witness Printer took 4.78 ms. Allocated memory is still 1.2 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:44,484 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.68 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.91 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.18 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 362.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2726.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 932.6 MB in the end (delta: 206.2 MB). Peak memory consumption was 206.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.78 ms. Allocated memory is still 1.2 GB. Free memory is still 932.6 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function -1 * j + n and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 36 SDtfs, 37 SDslu, 14 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf99 lsp64 ukn100 mio100 lsp100 div100 bol100 ite112 ukn100 eq170 hnf91 smp85 dnf98 smp100 tf110 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...