./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.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_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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 0455ba49274114922cfe1b7739d9cb0a89e6c868 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:28:12,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:28:12,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:28:12,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:28:12,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:28:12,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:28:12,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:28:12,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:28:12,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:28:12,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:28:12,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:28:12,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:28:12,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:28:12,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:28:12,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:28:12,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:28:12,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:28:12,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:28:12,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:28:12,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:28:12,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:28:12,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:28:12,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:28:12,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:28:12,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:28:12,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:28:12,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:28:12,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:28:12,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:28:12,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:28:12,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:28:12,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:28:12,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:28:12,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:28:12,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:28:12,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:28:12,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:28:12,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:28:12,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:28:12,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:28:12,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:28:12,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 11:28:13,012 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:28:13,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:28:13,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:28:13,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:28:13,016 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:28:13,016 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 11:28:13,017 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 11:28:13,017 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 11:28:13,017 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 11:28:13,017 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 11:28:13,019 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 11:28:13,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:28:13,019 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:28:13,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:28:13,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:28:13,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 11:28:13,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 11:28:13,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 11:28:13,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:28:13,022 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 11:28:13,022 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:28:13,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 11:28:13,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:28:13,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:28:13,023 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 11:28:13,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:28:13,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:28:13,024 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 11:28:13,025 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 11:28:13,025 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_6f61f4f0-db79-42b0-8951-a2a9712727ca/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 -> 0455ba49274114922cfe1b7739d9cb0a89e6c868 [2019-11-20 11:28:13,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:28:13,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:28:13,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:28:13,241 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:28:13,242 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:28:13,243 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2019-11-20 11:28:13,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/data/2394d7257/989df743cd734e2598133f05ad217a17/FLAG6dacbe586 [2019-11-20 11:28:13,750 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:28:13,751 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2019-11-20 11:28:13,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/data/2394d7257/989df743cd734e2598133f05ad217a17/FLAG6dacbe586 [2019-11-20 11:28:14,095 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/data/2394d7257/989df743cd734e2598133f05ad217a17 [2019-11-20 11:28:14,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:28:14,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:28:14,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:28:14,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:28:14,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:28:14,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49aaa0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14, skipping insertion in model container [2019-11-20 11:28:14,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,122 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:28:14,140 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:28:14,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:28:14,303 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:28:14,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:28:14,409 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:28:14,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14 WrapperNode [2019-11-20 11:28:14,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:28:14,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:28:14,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:28:14,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:28:14,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:28:14,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:28:14,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:28:14,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:28:14,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... [2019-11-20 11:28:14,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:28:14,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:28:14,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:28:14,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:28:14,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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 [2019-11-20 11:28:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:28:14,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:28:14,758 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:28:14,758 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 11:28:14,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:14 BoogieIcfgContainer [2019-11-20 11:28:14,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:28:14,761 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 11:28:14,761 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 11:28:14,765 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 11:28:14,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:28:14,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:28:14" (1/3) ... [2019-11-20 11:28:14,767 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55cd3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:28:14, skipping insertion in model container [2019-11-20 11:28:14,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:28:14,767 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:14" (2/3) ... [2019-11-20 11:28:14,768 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55cd3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:28:14, skipping insertion in model container [2019-11-20 11:28:14,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:28:14,768 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:14" (3/3) ... [2019-11-20 11:28:14,770 INFO L371 chiAutomizerObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2019-11-20 11:28:14,838 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 11:28:14,838 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 11:28:14,838 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 11:28:14,839 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:28:14,839 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:28:14,839 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 11:28:14,839 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:28:14,839 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 11:28:14,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-20 11:28:14,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:28:14,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:28:14,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:28:14,885 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 11:28:14,885 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:28:14,886 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 11:28:14,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-20 11:28:14,887 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:28:14,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:28:14,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:28:14,888 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 11:28:14,888 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:28:14,894 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 6#L18-2true [2019-11-20 11:28:14,895 INFO L796 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~y~0 >= 0); 9#L19true assume main_~x~0 <= 50;main_~y~0 := 1 + main_~y~0; 7#L19-2true main_~x~0 := 1 + main_~x~0; 6#L18-2true [2019-11-20 11:28:14,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:14,901 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 11:28:14,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:14,909 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402014094] [2019-11-20 11:28:14,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:15,009 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:28:15,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:15,010 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2019-11-20 11:28:15,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:15,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881777591] [2019-11-20 11:28:15,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:15,028 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:28:15,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:15,030 INFO L82 PathProgramCache]: Analyzing trace with hash 963342, now seen corresponding path program 1 times [2019-11-20 11:28:15,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:15,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24704375] [2019-11-20 11:28:15,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:15,047 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:28:15,147 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:28:15,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:28:15,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:28:15,150 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:28:15,151 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 11:28:15,151 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,151 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:28:15,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:28:15,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration1_Loop [2019-11-20 11:28:15,153 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:28:15,153 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:28:15,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:15,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:15,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:15,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:15,365 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:28:15,366 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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 [2019-11-20 11:28:15,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:15,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 11:28:15,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 11:28:15,382 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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 [2019-11-20 11:28:15,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:15,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 11:28:15,403 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 11:28:15,403 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_6f61f4f0-db79-42b0-8951-a2a9712727ca/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 [2019-11-20 11:28:15,412 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:15,412 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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 [2019-11-20 11:28:15,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 11:28:15,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 11:28:15,438 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 11:28:15,439 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=1}, {ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=0}] Lambdas: [1, 7, 7] Nus: [1, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:15,448 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 11:28:15,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 11:28:15,470 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 11:28:15,472 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:28:15,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:28:15,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:28:15,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:28:15,472 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 11:28:15,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:28:15,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:28:15,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration1_Loop [2019-11-20 11:28:15,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:28:15,473 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:28:15,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:15,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:15,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:15,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:15,615 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:28:15,621 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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) [2019-11-20 11:28:15,632 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 [2019-11-20 11:28:15,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:15,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:15,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:15,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:28:15,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:28:15,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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) [2019-11-20 11:28:15,681 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 [2019-11-20 11:28:15,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:15,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:15,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:15,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:28:15,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:28:15,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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) [2019-11-20 11:28:15,711 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 [2019-11-20 11:28:15,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:15,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:28:15,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:15,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:15,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:28:15,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:28:15,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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) [2019-11-20 11:28:15,742 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 [2019-11-20 11:28:15,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:15,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:28:15,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:15,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:15,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:28:15,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:28:15,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,751 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 11:28:15,755 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 11:28:15,756 INFO L444 ModelExtractionUtils]: 0 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_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:15,763 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 11:28:15,764 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 11:28:15,764 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 11:28:15,765 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 101 Supporting invariants [] [2019-11-20 11:28:15,771 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 11:28:15,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:15,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:28:15,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:15,837 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:28:15,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:28:15,884 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 [2019-11-20 11:28:15,886 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 4 states. [2019-11-20 11:28:15,949 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 4 states. Result 25 states and 35 transitions. Complement of second has 7 states. [2019-11-20 11:28:15,952 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 [2019-11-20 11:28:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 11:28:15,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-11-20 11:28:15,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-20 11:28:15,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:15,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-20 11:28:15,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:15,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-20 11:28:15,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:15,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2019-11-20 11:28:15,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:28:15,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 14 transitions. [2019-11-20 11:28:15,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 11:28:15,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-20 11:28:15,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-20 11:28:15,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 11:28:15,983 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-20 11:28:16,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-20 11:28:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-20 11:28:16,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-20 11:28:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-11-20 11:28:16,016 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-20 11:28:16,017 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-20 11:28:16,017 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 11:28:16,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-11-20 11:28:16,019 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:28:16,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:28:16,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:28:16,020 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 11:28:16,020 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:28:16,020 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 77#L18-2 assume !!(main_~y~0 >= 0); 73#L19 [2019-11-20 11:28:16,020 INFO L796 eck$LassoCheckResult]: Loop: 73#L19 assume !(main_~x~0 <= 50);main_~y~0 := main_~y~0 - 1; 78#L19-2 main_~x~0 := 1 + main_~x~0; 72#L18-2 assume !!(main_~y~0 >= 0); 73#L19 [2019-11-20 11:28:16,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:16,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-20 11:28:16,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:16,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005798146] [2019-11-20 11:28:16,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:16,034 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:28:16,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:16,035 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2019-11-20 11:28:16,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:16,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337983851] [2019-11-20 11:28:16,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:16,063 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:28:16,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:16,064 INFO L82 PathProgramCache]: Analyzing trace with hash 29865534, now seen corresponding path program 1 times [2019-11-20 11:28:16,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:16,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831639108] [2019-11-20 11:28:16,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:28:16,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831639108] [2019-11-20 11:28:16,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:28:16,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 11:28:16,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674704610] [2019-11-20 11:28:16,147 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:28:16,148 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:28:16,148 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:28:16,148 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:28:16,148 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 11:28:16,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:28:16,149 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:28:16,149 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration2_Loop [2019-11-20 11:28:16,149 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:28:16,149 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:28:16,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,274 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:28:16,274 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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) [2019-11-20 11:28:16,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:16,285 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 [2019-11-20 11:28:16,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 11:28:16,292 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_6f61f4f0-db79-42b0-8951-a2a9712727ca/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) [2019-11-20 11:28:16,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:16,303 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,312 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 11:28:16,312 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_6f61f4f0-db79-42b0-8951-a2a9712727ca/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) [2019-11-20 11:28:16,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:16,329 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/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) [2019-11-20 11:28:16,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 11:28:16,349 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,363 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 11:28:16,363 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=51} Honda state: {ULTIMATE.start_main_~x~0=51} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:16,376 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 11:28:16,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 11:28:16,428 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 11:28:16,440 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:28:16,441 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:28:16,441 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:28:16,441 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:28:16,441 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 11:28:16,441 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,441 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:28:16,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:28:16,442 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration2_Loop [2019-11-20 11:28:16,442 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:28:16,442 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:28:16,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,559 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:28:16,559 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,566 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 [2019-11-20 11:28:16,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:16,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:16,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:16,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:28:16,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:28:16,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 11:28:16,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:28:16,597 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 [2019-11-20 11:28:16,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:16,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:28:16,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:16,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:16,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:28:16,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:28:16,605 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:28:16,619 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 [2019-11-20 11:28:16,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:16,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:16,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:16,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:28:16,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:28:16,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:28:16,656 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 Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:16,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:28:16,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:16,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:16,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:28:16,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:28:16,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:28:16,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 11:28:16,667 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 11:28:16,668 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_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:28:16,676 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 11:28:16,676 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 11:28:16,677 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 11:28:16,677 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,688 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 11:28:16,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:16,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:28:16,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:16,742 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:28:16,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:16,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:28:16,766 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 [2019-11-20 11:28:16,767 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-20 11:28:16,805 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2019-11-20 11:28:16,807 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 [2019-11-20 11:28:16,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 11:28:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-20 11:28:16,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-20 11:28:16,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:16,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 11:28:16,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:16,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-20 11:28:16,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:16,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2019-11-20 11:28:16,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:28:16,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 13 states and 16 transitions. [2019-11-20 11:28:16,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 11:28:16,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 11:28:16,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2019-11-20 11:28:16,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 11:28:16,813 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-20 11:28:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2019-11-20 11:28:16,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2019-11-20 11:28:16,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-20 11:28:16,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-20 11:28:16,817 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-20 11:28:16,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:28:16,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:28:16,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:28:16,823 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2019-11-20 11:28:16,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:28:16,835 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-20 11:28:16,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:28:16,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2019-11-20 11:28:16,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:28:16,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 14 transitions. [2019-11-20 11:28:16,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 11:28:16,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 11:28:16,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2019-11-20 11:28:16,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 11:28:16,839 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-20 11:28:16,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2019-11-20 11:28:16,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-20 11:28:16,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 11:28:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-20 11:28:16,841 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-20 11:28:16,841 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-20 11:28:16,841 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 11:28:16,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2019-11-20 11:28:16,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:28:16,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:28:16,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:28:16,843 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2019-11-20 11:28:16,843 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:28:16,843 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY havoc main_#res;havoc main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 162#L18-2 assume !!(main_~y~0 >= 0); 163#L19 assume main_~x~0 <= 50;main_~y~0 := 1 + main_~y~0; 171#L19-2 main_~x~0 := 1 + main_~x~0; 172#L18-2 assume !!(main_~y~0 >= 0); 170#L19 [2019-11-20 11:28:16,843 INFO L796 eck$LassoCheckResult]: Loop: 170#L19 assume !(main_~x~0 <= 50);main_~y~0 := main_~y~0 - 1; 167#L19-2 main_~x~0 := 1 + main_~x~0; 168#L18-2 assume !!(main_~y~0 >= 0); 170#L19 [2019-11-20 11:28:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:16,844 INFO L82 PathProgramCache]: Analyzing trace with hash 29863612, now seen corresponding path program 2 times [2019-11-20 11:28:16,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:16,844 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484831815] [2019-11-20 11:28:16,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:16,854 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:28:16,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:16,855 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 2 times [2019-11-20 11:28:16,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:16,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015713092] [2019-11-20 11:28:16,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:28:16,864 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:28:16,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:16,865 INFO L82 PathProgramCache]: Analyzing trace with hash 608649772, now seen corresponding path program 1 times [2019-11-20 11:28:16,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:28:16,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323219294] [2019-11-20 11:28:16,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:28:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:28:16,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323219294] [2019-11-20 11:28:16,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115832920] [2019-11-20 11:28:16,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 11:28:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:16,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 11:28:16,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:28:16,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 11:28:16,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-11-20 11:28:16,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519290959] [2019-11-20 11:28:16,954 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:28:16,954 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:28:16,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:28:16,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:28:16,955 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 11:28:16,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:16,955 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:28:16,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:28:16,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration3_Loop [2019-11-20 11:28:16,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:28:16,956 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:28:16,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:16,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:17,048 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:28:17,048 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:28:17,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:28:17,060 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:28:17,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 11:28:17,079 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:17,123 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 11:28:17,125 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:28:17,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:28:17,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:28:17,126 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:28:17,126 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 11:28:17,126 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:17,126 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:28:17,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:28:17,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: GopanReps-CAV2006-Fig1a.c_Iteration3_Loop [2019-11-20 11:28:17,127 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:28:17,127 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:28:17,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:17,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:17,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:17,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:28:17,266 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:28:17,266 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:28:17,272 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 [2019-11-20 11:28:17,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:28:17,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:28:17,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:28:17,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:28:17,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:28:17,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:28:17,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:17,281 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 11:28:17,286 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 11:28:17,286 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_6f61f4f0-db79-42b0-8951-a2a9712727ca/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:28:17,291 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 11:28:17,291 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 11:28:17,291 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 11:28:17,292 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-20 11:28:17,294 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:28:17,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:17,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:28:17,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:17,333 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:28:17,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:28:17,345 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 [2019-11-20 11:28:17,345 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-20 11:28:17,353 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2019-11-20 11:28:17,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-20 11:28:17,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 11:28:17,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2019-11-20 11:28:17,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 11:28:17,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:17,356 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 11:28:17,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:17,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:28:17,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:17,390 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:28:17,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:28:17,409 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 11:28:17,409 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-20 11:28:17,415 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2019-11-20 11:28:17,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-20 11:28:17,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 11:28:17,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2019-11-20 11:28:17,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 11:28:17,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:17,417 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 11:28:17,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:28:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:17,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:28:17,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:28:17,449 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:28:17,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:28:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:28:17,463 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 11:28:17,463 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-20 11:28:17,494 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 19 transitions. Complement of second has 4 states. [2019-11-20 11:28:17,495 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 [2019-11-20 11:28:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 11:28:17,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-11-20 11:28:17,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 11:28:17,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:17,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-20 11:28:17,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:17,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2019-11-20 11:28:17,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:28:17,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-11-20 11:28:17,498 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:28:17,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-11-20 11:28:17,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 11:28:17,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 11:28:17,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 11:28:17,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:28:17,499 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:28:17,500 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:28:17,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:28:17,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:28:17,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:28:17,500 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2019-11-20 11:28:17,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:28:17,501 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-20 11:28:17,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 11:28:17,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-20 11:28:17,501 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:28:17,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:28:17,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 11:28:17,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 11:28:17,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 11:28:17,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:28:17,502 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:28:17,502 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:28:17,502 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:28:17,502 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 11:28:17,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:28:17,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:28:17,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 11:28:17,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:28:17 BoogieIcfgContainer [2019-11-20 11:28:17,513 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 11:28:17,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:28:17,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:28:17,514 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:28:17,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:14" (3/4) ... [2019-11-20 11:28:17,518 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:28:17,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:28:17,521 INFO L168 Benchmark]: Toolchain (without parser) took 3419.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:28:17,521 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. [2019-11-20 11:28:17,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:28:17,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.49 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. [2019-11-20 11:28:17,523 INFO L168 Benchmark]: Boogie Preprocessor took 17.59 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. [2019-11-20 11:28:17,528 INFO L168 Benchmark]: RCFGBuilder took 294.31 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:28:17,529 INFO L168 Benchmark]: BuchiAutomizer took 2752.49 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:28:17,530 INFO L168 Benchmark]: Witness Printer took 4.73 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. [2019-11-20 11:28:17,537 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 305.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.49 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 17.59 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 294.31 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2752.49 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.73 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 101 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 13 SDs, 0 SdLazy, 33 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...