./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB16.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 ee984bca7200ddfe2e041842f64b6ddcaef24aa5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:10:10,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:10:10,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:10:10,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:10:10,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:10:10,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:10:10,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:10:10,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:10:10,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:10:10,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:10:10,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:10:10,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:10:10,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:10:10,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:10:10,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:10:10,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:10:10,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:10:10,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:10:10,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:10:10,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:10:10,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:10:10,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:10:10,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:10:10,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:10:10,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:10:10,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:10:10,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:10:10,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:10:10,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:10:10,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:10:10,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:10:10,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:10:10,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:10:10,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:10:10,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:10:10,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:10:10,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:10:10,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:10:10,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:10:10,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:10:10,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:10:10,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:10:10,622 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:10:10,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:10:10,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:10:10,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:10:10,623 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:10:10,623 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:10:10,623 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:10:10,623 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:10:10,623 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:10:10,623 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:10:10,623 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:10:10,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:10:10,624 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:10:10,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:10:10,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:10:10,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:10:10,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:10:10,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:10:10,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:10:10,624 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:10:10,625 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:10:10,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:10:10,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:10:10,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:10:10,625 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:10:10,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:10:10,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:10:10,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:10:10,626 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:10:10,626 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:10:10,626 INFO L138 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/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 -> ee984bca7200ddfe2e041842f64b6ddcaef24aa5 [2019-12-07 18:10:10,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:10:10,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:10:10,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:10:10,741 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:10:10,741 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:10:10,742 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB16.c [2019-12-07 18:10:10,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/data/ae69d1945/83d7e9fc307c4e0e87ef6ba62aa9d460/FLAG93a3ce0d6 [2019-12-07 18:10:11,238 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:10:11,238 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/sv-benchmarks/c/termination-restricted-15/PastaB16.c [2019-12-07 18:10:11,242 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/data/ae69d1945/83d7e9fc307c4e0e87ef6ba62aa9d460/FLAG93a3ce0d6 [2019-12-07 18:10:11,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/data/ae69d1945/83d7e9fc307c4e0e87ef6ba62aa9d460 [2019-12-07 18:10:11,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:10:11,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:10:11,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:10:11,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:10:11,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:10:11,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514aafbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11, skipping insertion in model container [2019-12-07 18:10:11,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:10:11,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:10:11,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:10:11,378 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:10:11,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:10:11,429 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:10:11,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11 WrapperNode [2019-12-07 18:10:11,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:10:11,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:10:11,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:10:11,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:10:11,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:10:11,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:10:11,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:10:11,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:10:11,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... [2019-12-07 18:10:11,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:10:11,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:10:11,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:10:11,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:10:11,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:10:11,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:10:11,585 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:10:11,585 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 18:10:11,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:10:11 BoogieIcfgContainer [2019-12-07 18:10:11,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:10:11,586 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:10:11,587 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:10:11,589 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:10:11,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:10:11,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:10:11" (1/3) ... [2019-12-07 18:10:11,590 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e2bd639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:10:11, skipping insertion in model container [2019-12-07 18:10:11,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:10:11,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:11" (2/3) ... [2019-12-07 18:10:11,590 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e2bd639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:10:11, skipping insertion in model container [2019-12-07 18:10:11,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:10:11,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:10:11" (3/3) ... [2019-12-07 18:10:11,591 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaB16.c [2019-12-07 18:10:11,620 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:10:11,621 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:10:11,621 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:10:11,621 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:10:11,621 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:10:11,621 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:10:11,621 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:10:11,621 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:10:11,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 18:10:11,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:10:11,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:10:11,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:10:11,646 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:10:11,646 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:10:11,647 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:10:11,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-12-07 18:10:11,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:10:11,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:10:11,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:10:11,648 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:10:11,648 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:10:11,652 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L11-2true [2019-12-07 18:10:11,653 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 10#L12-3true main_~x~0 := main_~x~0 - 1; 9#L11-2true [2019-12-07 18:10:11,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:11,656 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 18:10:11,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:11,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510802386] [2019-12-07 18:10:11,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:11,724 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:10:11,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:11,725 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-12-07 18:10:11,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:11,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128761921] [2019-12-07 18:10:11,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:11,733 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:10:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-12-07 18:10:11,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:11,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265603774] [2019-12-07 18:10:11,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:11,741 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:10:11,775 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:10:11,775 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:10:11,775 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:10:11,776 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:10:11,776 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:10:11,776 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:11,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:10:11,776 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:10:11,776 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2019-12-07 18:10:11,776 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:10:11,777 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:10:11,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:11,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:11,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:11,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:11,861 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:10:11,862 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:11,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:10:11,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:10:11,875 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:10:11,876 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:11,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:10:11,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:10:11,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:10:11,884 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:11,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:10:11,888 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:11,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:10:11,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:10:11,903 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:10:11,904 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:10:11,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:10:11,905 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:10:11,905 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:10:11,905 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:10:11,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:11,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:10:11,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:10:11,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2019-12-07 18:10:11,905 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:10:11,905 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:10:11,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:11,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:11,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:11,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:11,949 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:10:11,953 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:11,956 INFO L120 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 [2019-12-07 18:10:11,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:10:11,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:10:11,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:10:11,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:10:11,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:10:11,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:10:11,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:11,973 INFO L120 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 [2019-12-07 18:10:11,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:10:11,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:10:11,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:10:11,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:10:11,978 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:10:11,978 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:10:11,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:11,985 INFO L120 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 [2019-12-07 18:10:11,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:10:11,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:10:11,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:10:11,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:10:11,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:10:11,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:10:11,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:10:11,990 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:10:11,993 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-12-07 18:10:11,993 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:11,996 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:10:11,996 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:10:11,996 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:10:11,997 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-12-07 18:10:11,999 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:10:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:12,021 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:10:12,022 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:10:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:12,028 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:10:12,028 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:10:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:10:12,049 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:10:12,050 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-12-07 18:10:12,078 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2019-12-07 18:10:12,079 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 [2019-12-07 18:10:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:10:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-12-07 18:10:12,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-12-07 18:10:12,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:10:12,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-12-07 18:10:12,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:10:12,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-12-07 18:10:12,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:10:12,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-12-07 18:10:12,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:10:12,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-12-07 18:10:12,088 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 18:10:12,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 18:10:12,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-12-07 18:10:12,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:10:12,088 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 18:10:12,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-12-07 18:10:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-12-07 18:10:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 18:10:12,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-12-07 18:10:12,105 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-12-07 18:10:12,105 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-12-07 18:10:12,105 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:10:12,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2019-12-07 18:10:12,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:10:12,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:10:12,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:10:12,106 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:10:12,106 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:10:12,106 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 74#L11-2 assume !!(main_~x~0 > 0); 70#L12-2 [2019-12-07 18:10:12,106 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~y~0 > 0);main_~y~0 := main_~y~0 - 1; 70#L12-2 [2019-12-07 18:10:12,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:12,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 18:10:12,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:12,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845267582] [2019-12-07 18:10:12,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:12,111 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:10:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:12,111 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-12-07 18:10:12,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:12,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385933204] [2019-12-07 18:10:12,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:12,115 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:10:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:12,116 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-12-07 18:10:12,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:12,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131921039] [2019-12-07 18:10:12,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:12,122 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:10:12,130 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:10:12,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:10:12,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:10:12,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:10:12,131 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:10:12,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:12,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:10:12,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:10:12,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2019-12-07 18:10:12,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:10:12,131 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:10:12,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:12,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:12,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:12,163 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:10:12,163 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:12,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:10:12,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:10:12,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:10:12,171 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/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 [2019-12-07 18:10:12,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:10:12,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:10:12,177 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:10:12,178 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:12,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:10:12,181 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:12,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:10:12,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:10:12,193 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:10:12,194 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:10:12,194 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:10:12,194 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:10:12,194 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:10:12,194 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:10:12,194 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:12,194 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:10:12,194 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:10:12,194 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2019-12-07 18:10:12,194 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:10:12,195 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:10:12,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:12,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:12,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:10:12,225 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:10:12,225 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:12,227 INFO L120 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 [2019-12-07 18:10:12,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:10:12,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:10:12,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:10:12,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:10:12,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:10:12,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:10:12,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:12,240 INFO L120 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 [2019-12-07 18:10:12,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:10:12,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:10:12,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:10:12,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:10:12,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:10:12,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:10:12,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:10:12,245 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:10:12,249 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:10:12,250 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2980ed8c-804d-4704-899b-46114ae37275/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:10:12,258 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:10:12,258 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:10:12,258 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:10:12,258 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 18:10:12,259 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:10:12,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:12,277 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:10:12,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:10:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:12,280 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:10:12,280 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:10:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:10:12,281 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 [2019-12-07 18:10:12,281 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-12-07 18:10:12,286 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2019-12-07 18:10:12,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:10:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:10:12,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-12-07 18:10:12,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 18:10:12,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:10:12,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 18:10:12,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:10:12,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-12-07 18:10:12,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:10:12,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2019-12-07 18:10:12,289 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:10:12,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2019-12-07 18:10:12,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:10:12,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:10:12,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:10:12,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:10:12,289 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:10:12,289 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:10:12,289 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:10:12,290 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:10:12,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:10:12,290 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:10:12,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:10:12,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:10:12 BoogieIcfgContainer [2019-12-07 18:10:12,294 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:10:12,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:10:12,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:10:12,295 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:10:12,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:10:11" (3/4) ... [2019-12-07 18:10:12,297 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:10:12,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:10:12,299 INFO L168 Benchmark]: Toolchain (without parser) took 1044.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 944.7 MB in the beginning and 905.1 MB in the end (delta: 39.6 MB). Peak memory consumption was 120.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:12,300 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:10:12,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:12,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:10:12,301 INFO L168 Benchmark]: Boogie Preprocessor took 13.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:10:12,301 INFO L168 Benchmark]: RCFGBuilder took 123.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:12,302 INFO L168 Benchmark]: BuchiAutomizer took 707.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 905.1 MB in the end (delta: 154.0 MB). Peak memory consumption was 154.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:12,302 INFO L168 Benchmark]: Witness Printer took 3.04 ms. Allocated memory is still 1.1 GB. Free memory is still 905.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:10:12,304 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 123.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 707.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 905.1 MB in the end (delta: 154.0 MB). Peak memory consumption was 154.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.04 ms. Allocated memory is still 1.1 GB. Free memory is still 905.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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...