./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/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 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:03:02,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:03:02,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:03:02,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:03:02,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:03:02,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:03:03,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:03:03,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:03:03,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:03:03,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:03:03,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:03:03,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:03:03,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:03:03,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:03:03,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:03:03,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:03:03,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:03:03,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:03:03,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:03:03,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:03:03,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:03:03,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:03:03,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:03:03,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:03:03,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:03:03,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:03:03,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:03:03,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:03:03,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:03:03,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:03:03,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:03:03,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:03:03,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:03:03,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:03:03,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:03:03,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:03:03,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:03:03,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:03:03,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:03:03,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:03:03,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:03:03,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:03:03,066 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:03:03,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:03:03,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:03:03,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:03:03,068 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:03:03,068 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:03:03,068 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:03:03,068 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:03:03,068 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:03:03,069 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:03:03,069 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:03:03,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:03:03,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:03:03,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:03:03,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:03:03,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:03:03,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:03:03,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:03:03,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:03:03,073 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:03:03,073 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:03:03,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:03:03,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:03:03,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:03:03,073 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:03:03,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:03:03,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:03:03,074 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:03:03,075 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:03:03,075 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/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/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 -> 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 [2019-10-22 09:03:03,113 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:03:03,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:03:03,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:03:03,131 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:03:03,131 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:03:03,132 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB14.c [2019-10-22 09:03:03,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/data/15ee5a5b0/156e6ddedd924c42a7ec20745f5b3e54/FLAG25169b528 [2019-10-22 09:03:03,544 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:03:03,545 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/sv-benchmarks/c/termination-restricted-15/PastaB14.c [2019-10-22 09:03:03,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/data/15ee5a5b0/156e6ddedd924c42a7ec20745f5b3e54/FLAG25169b528 [2019-10-22 09:03:03,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/bin/uautomizer/data/15ee5a5b0/156e6ddedd924c42a7ec20745f5b3e54 [2019-10-22 09:03:03,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:03:03,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:03:03,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:03,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:03:03,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:03:03,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:03" (1/1) ... [2019-10-22 09:03:03,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f01a154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:03, skipping insertion in model container [2019-10-22 09:03:03,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:03:03" (1/1) ... [2019-10-22 09:03:03,978 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:03:03,993 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:03:04,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:04,128 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:03:04,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:03:04,219 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:03:04,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04 WrapperNode [2019-10-22 09:03:04,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:03:04,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:03:04,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:03:04,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:03:04,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:03:04,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:03:04,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:03:04,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:03:04,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... [2019-10-22 09:03:04,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:03:04,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:03:04,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:03:04,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:03:04,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/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 [2019-10-22 09:03:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:03:04,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:03:04,495 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:03:04,495 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 09:03:04,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:04 BoogieIcfgContainer [2019-10-22 09:03:04,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:03:04,497 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:03:04,497 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:03:04,502 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:03:04,504 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:04,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:03:03" (1/3) ... [2019-10-22 09:03:04,506 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21e70a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:03:04, skipping insertion in model container [2019-10-22 09:03:04,506 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:04,506 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:03:04" (2/3) ... [2019-10-22 09:03:04,507 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21e70a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:03:04, skipping insertion in model container [2019-10-22 09:03:04,507 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:03:04,508 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:04" (3/3) ... [2019-10-22 09:03:04,509 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaB14.c [2019-10-22 09:03:04,566 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:03:04,566 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:03:04,567 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:03:04,567 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:03:04,567 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:03:04,567 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:03:04,567 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:03:04,567 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:03:04,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 09:03:04,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:03:04,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:04,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:04,610 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:03:04,611 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:03:04,611 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:03:04,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-10-22 09:03:04,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:03:04,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:04,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:04,612 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:03:04,612 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:03:04,621 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L12-3true [2019-10-22 09:03:04,622 INFO L793 eck$LassoCheckResult]: Loop: 8#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 8#L12-3true [2019-10-22 09:03:04,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,628 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 09:03:04,638 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,638 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352474875] [2019-10-22 09:03:04,639 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,639 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,739 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:04,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-10-22 09:03:04,740 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999338792] [2019-10-22 09:03:04,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:04,841 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999338792] [2019-10-22 09:03:04,842 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:03:04,842 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 09:03:04,842 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937228835] [2019-10-22 09:03:04,846 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 09:03:04,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:03:04,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:03:04,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:03:04,885 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-10-22 09:03:04,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:03:04,914 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-10-22 09:03:04,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:03:04,916 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-10-22 09:03:04,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:03:04,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-10-22 09:03:04,922 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-10-22 09:03:04,922 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-10-22 09:03:04,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-10-22 09:03:04,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:03:04,923 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-10-22 09:03:04,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-10-22 09:03:04,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-10-22 09:03:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:03:04,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-10-22 09:03:04,952 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-10-22 09:03:04,952 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-10-22 09:03:04,952 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:03:04,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-10-22 09:03:04,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 09:03:04,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:03:04,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:03:04,953 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 09:03:04,953 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 09:03:04,953 INFO L791 eck$LassoCheckResult]: Stem: 26#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; 27#L12-3 [2019-10-22 09:03:04,953 INFO L793 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2019-10-22 09:03:04,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,954 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-10-22 09:03:04,954 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469117064] [2019-10-22 09:03:04,955 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,955 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,963 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:04,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,963 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-10-22 09:03:04,963 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604356249] [2019-10-22 09:03:04,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:04,977 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:04,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:04,978 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-10-22 09:03:04,978 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:03:04,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605249291] [2019-10-22 09:03:04,978 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:03:04,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:03:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:03:05,002 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:03:05,071 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:03:05,072 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:03:05,072 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:03:05,072 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:03:05,073 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:03:05,073 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:03:05,073 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:03:05,073 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:03:05,073 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2019-10-22 09:03:05,073 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:03:05,073 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:03:05,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:05,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:05,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:05,241 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:03:05,242 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/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 [2019-10-22 09:03:05,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:03:05,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:03:05,256 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:03:05,256 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/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/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 [2019-10-22 09:03:05,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:03:05,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:03:05,269 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:03:05,269 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/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/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 [2019-10-22 09:03:05,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:03:05,274 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f6ce733-c0b3-4f90-a889-3236ef27ed9b/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 [2019-10-22 09:03:05,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:03:05,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:03:05,310 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:03:05,314 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:03:05,315 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:03:05,315 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:03:05,315 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:03:05,315 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:03:05,315 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:03:05,315 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:03:05,316 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:03:05,316 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2019-10-22 09:03:05,316 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:03:05,316 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:03:05,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:05,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:05,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:03:05,456 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:03:05,462 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:03:05,464 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 [2019-10-22 09:03:05,466 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:03:05,467 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:03:05,467 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:03:05,468 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:03:05,472 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:03:05,477 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:03:05,484 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:03:05,489 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 [2019-10-22 09:03:05,490 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:03:05,490 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:03:05,490 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:03:05,490 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:03:05,492 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:03:05,492 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:03:05,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:03:05,501 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 [2019-10-22 09:03:05,503 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:03:05,503 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:03:05,503 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:03:05,504 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:03:05,504 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:03:05,505 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:03:05,505 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:03:05,514 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:03:05,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:03:05,521 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:03:05,523 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:03:05,523 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:03:05,523 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:03:05,524 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-10-22 09:03:05,528 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:03:05,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:03:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:05,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:03:05,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:03:05,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:03:05,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:03:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:03:05,607 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 [2019-10-22 09:03:05,608 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-10-22 09:03:05,656 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 8 states and 9 transitions. Complement of second has 6 states. [2019-10-22 09:03:05,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 09:03:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:03:05,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-10-22 09:03:05,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 3 letters. [2019-10-22 09:03:05,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:03:05,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2019-10-22 09:03:05,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:03:05,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 6 letters. [2019-10-22 09:03:05,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:03:05,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-10-22 09:03:05,663 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:03:05,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2019-10-22 09:03:05,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:03:05,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:03:05,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:03:05,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:03:05,664 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:03:05,664 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:03:05,664 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:03:05,664 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:03:05,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:03:05,664 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:03:05,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:03:05,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:03:05 BoogieIcfgContainer [2019-10-22 09:03:05,672 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:03:05,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:03:05,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:03:05,673 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:03:05,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:03:04" (3/4) ... [2019-10-22 09:03:05,678 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:03:05,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:03:05,680 INFO L168 Benchmark]: Toolchain (without parser) took 1717.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 947.1 MB in the beginning and 1.0 GB in the end (delta: -54.5 MB). Peak memory consumption was 74.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:05,681 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:05,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:05,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:05,683 INFO L168 Benchmark]: Boogie Preprocessor took 17.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:05,684 INFO L168 Benchmark]: RCFGBuilder took 224.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:05,684 INFO L168 Benchmark]: BuchiAutomizer took 1175.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.1 MB). Peak memory consumption was 98.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:03:05,685 INFO L168 Benchmark]: Witness Printer took 5.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:03:05,689 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 224.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1175.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.1 MB). Peak memory consumption was 98.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf97 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp85 dnf100 smp100 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 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...