./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB16.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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 0.1.24-678e011 [2019-11-19 23:48:52,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:48:52,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:48:52,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:48:52,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:48:52,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:48:52,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:48:52,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:48:52,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:48:52,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:48:52,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:48:52,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:48:52,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:48:52,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:48:52,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:48:52,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:48:52,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:48:52,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:48:52,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:48:53,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:48:53,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:48:53,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:48:53,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:48:53,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:48:53,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:48:53,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:48:53,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:48:53,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:48:53,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:48:53,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:48:53,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:48:53,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:48:53,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:48:53,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:48:53,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:48:53,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:48:53,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:48:53,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:48:53,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:48:53,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:48:53,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:48:53,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 23:48:53,055 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:48:53,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:48:53,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:48:53,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:48:53,057 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:48:53,057 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 23:48:53,057 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 23:48:53,057 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 23:48:53,058 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 23:48:53,058 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 23:48:53,058 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 23:48:53,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:48:53,059 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:48:53,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:48:53,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:48:53,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 23:48:53,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 23:48:53,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 23:48:53,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:48:53,060 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 23:48:53,060 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:48:53,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 23:48:53,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:48:53,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:48:53,061 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 23:48:53,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:48:53,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:48:53,062 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 23:48:53,063 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 23:48:53,063 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_3eccf523-4646-4a29-80a6-7b7328d81e66/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 [2019-11-19 23:48:53,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:48:53,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:48:53,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:48:53,220 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:48:53,221 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:48:53,222 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB16.c [2019-11-19 23:48:53,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/data/ddea2ead3/366b010a05e8489cab80463736c2b3fa/FLAG9eb10f9c9 [2019-11-19 23:48:53,680 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:48:53,681 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/sv-benchmarks/c/termination-restricted-15/PastaB16.c [2019-11-19 23:48:53,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/data/ddea2ead3/366b010a05e8489cab80463736c2b3fa/FLAG9eb10f9c9 [2019-11-19 23:48:54,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/bin/uautomizer/data/ddea2ead3/366b010a05e8489cab80463736c2b3fa [2019-11-19 23:48:54,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:48:54,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:48:54,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:48:54,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:48:54,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:48:54,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e629c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54, skipping insertion in model container [2019-11-19 23:48:54,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,068 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:48:54,086 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:48:54,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:48:54,283 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:48:54,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:48:54,381 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:48:54,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54 WrapperNode [2019-11-19 23:48:54,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:48:54,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:48:54,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:48:54,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:48:54,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:48:54,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:48:54,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:48:54,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:48:54,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... [2019-11-19 23:48:54,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:48:54,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:48:54,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:48:54,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:48:54,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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 [2019-11-19 23:48:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:48:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:48:54,609 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:48:54,610 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 23:48:54,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:48:54 BoogieIcfgContainer [2019-11-19 23:48:54,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:48:54,612 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 23:48:54,612 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 23:48:54,615 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 23:48:54,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:48:54,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 11:48:54" (1/3) ... [2019-11-19 23:48:54,617 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71690cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:48:54, skipping insertion in model container [2019-11-19 23:48:54,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:48:54,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:48:54" (2/3) ... [2019-11-19 23:48:54,618 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71690cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:48:54, skipping insertion in model container [2019-11-19 23:48:54,619 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:48:54,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:48:54" (3/3) ... [2019-11-19 23:48:54,620 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaB16.c [2019-11-19 23:48:54,663 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 23:48:54,663 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 23:48:54,664 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 23:48:54,664 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:48:54,664 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:48:54,664 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 23:48:54,664 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:48:54,664 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 23:48:54,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-19 23:48:54,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:48:54,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:54,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:54,703 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 23:48:54,703 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:48:54,703 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 23:48:54,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-19 23:48:54,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:48:54,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:54,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:54,704 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 23:48:54,705 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:48:54,711 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L11-2true [2019-11-19 23:48:54,711 INFO L796 eck$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 [2019-11-19 23:48:54,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:54,716 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-19 23:48:54,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:54,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992142971] [2019-11-19 23:48:54,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:54,806 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:54,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:54,807 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-11-19 23:48:54,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:54,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383895721] [2019-11-19 23:48:54,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:54,819 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:54,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:54,821 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-11-19 23:48:54,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:54,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149108077] [2019-11-19 23:48:54,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:54,831 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:54,875 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:54,876 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:54,876 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:54,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:54,876 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:48:54,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:54,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:54,877 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:54,877 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2019-11-19 23:48:54,877 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:54,877 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:54,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:54,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:54,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:54,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,043 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:55,044 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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 [2019-11-19 23:48:55,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:55,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:48:55,066 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:48:55,066 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: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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 [2019-11-19 23:48:55,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:55,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:48:55,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:48:55,080 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_3eccf523-4646-4a29-80a6-7b7328d81e66/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 [2019-11-19 23:48:55,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:55,089 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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 [2019-11-19 23:48:55,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:48:55,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:48:55,120 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:48:55,122 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:55,122 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:55,122 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:55,122 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:55,123 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:48:55,123 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,123 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:55,123 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:55,123 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2019-11-19 23:48:55,123 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:55,123 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:55,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,239 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:55,243 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,255 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 [2019-11-19 23:48:55,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:55,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:55,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:55,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:55,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:48:55,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,293 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 [2019-11-19 23:48:55,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:55,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:55,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:55,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:55,301 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:48:55,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,328 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 [2019-11-19 23:48:55,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:55,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:48:55,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:55,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:55,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:55,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:55,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,339 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:48:55,354 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-19 23:48:55,355 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_3eccf523-4646-4a29-80a6-7b7328d81e66/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 [2019-11-19 23:48:55,371 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:48:55,371 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:48:55,371 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:48:55,372 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-19 23:48:55,376 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 23:48:55,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:55,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:48:55,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:55,423 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:48:55,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:48:55,458 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 [2019-11-19 23:48:55,459 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-19 23:48:55,501 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. [2019-11-19 23:48:55,502 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 [2019-11-19 23:48:55,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 23:48:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-11-19 23:48:55,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-19 23:48:55,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:55,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-19 23:48:55,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:55,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-19 23:48:55,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:55,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-11-19 23:48:55,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-19 23:48:55,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-19 23:48:55,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-19 23:48:55,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-19 23:48:55,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-19 23:48:55,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:48:55,515 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-19 23:48:55,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-19 23:48:55,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-11-19 23:48:55,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 23:48:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-11-19 23:48:55,537 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-19 23:48:55,538 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-19 23:48:55,538 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 23:48:55,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2019-11-19 23:48:55,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-19 23:48:55,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:48:55,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:48:55,539 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 23:48:55,539 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 23:48:55,539 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 74#L11-2 assume !!(main_~x~0 > 0); 70#L12-2 [2019-11-19 23:48:55,539 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~y~0 > 0);main_~y~0 := main_~y~0 - 1; 70#L12-2 [2019-11-19 23:48:55,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:55,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-19 23:48:55,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:55,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820506808] [2019-11-19 23:48:55,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:55,547 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:55,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:55,548 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-19 23:48:55,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:55,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162467978] [2019-11-19 23:48:55,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:55,554 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:55,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:55,554 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-19 23:48:55,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:48:55,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702721269] [2019-11-19 23:48:55,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:48:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:48:55,564 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:48:55,582 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:55,582 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:55,582 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:55,582 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:55,582 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:48:55,583 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,583 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:55,583 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:55,583 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2019-11-19 23:48:55,583 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:55,583 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:55,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,655 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:55,655 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:55,669 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,674 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:48:55,674 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_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:55,691 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,696 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:48:55,697 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_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:48:55,715 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:48:55,737 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,747 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:48:55,750 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:48:55,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:48:55,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:48:55,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:48:55,751 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:48:55,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:48:55,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:48:55,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2019-11-19 23:48:55,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:48:55,751 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:48:55,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:48:55,809 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:48:55,809 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,822 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 [2019-11-19 23:48:55,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:55,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:55,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:55,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:55,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:48:55,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,851 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 [2019-11-19 23:48:55,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:48:55,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:48:55,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:48:55,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:48:55,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:48:55,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:48:55,864 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:48:55,867 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:48:55,868 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_3eccf523-4646-4a29-80a6-7b7328d81e66/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) [2019-11-19 23:48:55,872 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:48:55,872 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:48:55,872 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:48:55,872 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-19 23:48:55,875 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:48:55,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:48:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:55,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:48:55,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:48:55,908 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:48:55,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:48:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:48:55,908 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 [2019-11-19 23:48:55,909 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-19 23:48:55,923 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. [2019-11-19 23:48:55,923 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 [2019-11-19 23:48:55,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-19 23:48:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-19 23:48:55,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-19 23:48:55,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:55,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-19 23:48:55,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:55,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-19 23:48:55,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:48:55,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2019-11-19 23:48:55,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:48:55,927 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2019-11-19 23:48:55,927 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 23:48:55,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 23:48:55,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 23:48:55,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:48:55,927 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:48:55,927 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:48:55,928 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:48:55,928 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 23:48:55,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:48:55,928 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:48:55,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 23:48:55,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 11:48:55 BoogieIcfgContainer [2019-11-19 23:48:55,934 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 23:48:55,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:48:55,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:48:55,934 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:48:55,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:48:54" (3/4) ... [2019-11-19 23:48:55,938 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:48:55,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:48:55,940 INFO L168 Benchmark]: Toolchain (without parser) took 1887.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.7 MB in the beginning and 944.4 MB in the end (delta: 291.2 kB). Peak memory consumption was 132.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:55,941 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:48:55,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:55,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:48:55,943 INFO L168 Benchmark]: Boogie Preprocessor took 15.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:48:55,943 INFO L168 Benchmark]: RCFGBuilder took 182.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:55,944 INFO L168 Benchmark]: BuchiAutomizer took 1321.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.4 MB in the end (delta: 164.9 MB). Peak memory consumption was 164.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:48:55,944 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 1.2 GB. Free memory is still 944.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:48:55,947 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 182.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1321.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.4 MB in the end (delta: 164.9 MB). Peak memory consumption was 164.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.05 ms. Allocated memory is still 1.2 GB. Free memory is still 944.4 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 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...