./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.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_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:33:22,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:33:22,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:33:22,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:33:22,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:33:22,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:33:22,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:33:22,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:33:22,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:33:22,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:33:22,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:33:22,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:33:22,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:33:22,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:33:22,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:33:22,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:33:22,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:33:22,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:33:22,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:33:22,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:33:22,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:33:22,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:33:22,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:33:22,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:33:22,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:33:22,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:33:22,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:33:22,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:33:22,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:33:22,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:33:22,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:33:22,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:33:22,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:33:22,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:33:22,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:33:22,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:33:22,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:33:22,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:33:22,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:33:22,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:33:22,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:33:22,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 05:33:23,025 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:33:23,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:33:23,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:33:23,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:33:23,027 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:33:23,027 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 05:33:23,027 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 05:33:23,028 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 05:33:23,028 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 05:33:23,028 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 05:33:23,028 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 05:33:23,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:33:23,029 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:33:23,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:33:23,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:33:23,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 05:33:23,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 05:33:23,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 05:33:23,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:33:23,030 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 05:33:23,030 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:33:23,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 05:33:23,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:33:23,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:33:23,031 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 05:33:23,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:33:23,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:33:23,032 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 05:33:23,032 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 05:33:23,033 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_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2019-11-20 05:33:23,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:33:23,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:33:23,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:33:23,189 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:33:23,191 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:33:23,192 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-20 05:33:23,252 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/data/2d7bb0e7e/97a4f1151ecb427bb9f4f85466880def/FLAGe9b79a469 [2019-11-20 05:33:23,636 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:33:23,637 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-20 05:33:23,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/data/2d7bb0e7e/97a4f1151ecb427bb9f4f85466880def/FLAGe9b79a469 [2019-11-20 05:33:24,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/data/2d7bb0e7e/97a4f1151ecb427bb9f4f85466880def [2019-11-20 05:33:24,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:33:24,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:33:24,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:33:24,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:33:24,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:33:24,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81c15f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24, skipping insertion in model container [2019-11-20 05:33:24,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,108 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:33:24,122 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:33:24,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:33:24,309 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:33:24,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:33:24,417 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:33:24,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24 WrapperNode [2019-11-20 05:33:24,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:33:24,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:33:24,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:33:24,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:33:24,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:33:24,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:33:24,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:33:24,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:33:24,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... [2019-11-20 05:33:24,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:33:24,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:33:24,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:33:24,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:33:24,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:33:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:33:24,682 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:33:24,682 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 05:33:24,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:33:24 BoogieIcfgContainer [2019-11-20 05:33:24,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:33:24,684 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 05:33:24,684 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 05:33:24,687 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 05:33:24,688 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:33:24,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:33:24" (1/3) ... [2019-11-20 05:33:24,690 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26f9e070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:33:24, skipping insertion in model container [2019-11-20 05:33:24,690 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:33:24,691 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:33:24" (2/3) ... [2019-11-20 05:33:24,691 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26f9e070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:33:24, skipping insertion in model container [2019-11-20 05:33:24,691 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:33:24,692 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:33:24" (3/3) ... [2019-11-20 05:33:24,693 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-20 05:33:24,739 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 05:33:24,740 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 05:33:24,740 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 05:33:24,740 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:33:24,740 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:33:24,740 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 05:33:24,740 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:33:24,741 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 05:33:24,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-20 05:33:24,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 05:33:24,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:33:24,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:33:24,785 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 05:33:24,785 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:33:24,785 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 05:33:24,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-20 05:33:24,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 05:33:24,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:33:24,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:33:24,788 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 05:33:24,788 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:33:24,795 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 3#L17-2true [2019-11-20 05:33:24,796 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 6#L19-2true assume !(main_~j~0 > 0); 5#L19-3true main_~i~0 := main_~i~0 - 1; 3#L17-2true [2019-11-20 05:33:24,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:24,802 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 05:33:24,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:33:24,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952567023] [2019-11-20 05:33:24,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:33:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:24,890 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:33:24,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:24,892 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-11-20 05:33:24,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:33:24,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24704375] [2019-11-20 05:33:24,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:33:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:24,905 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:33:24,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:24,907 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-11-20 05:33:24,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:33:24,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569267076] [2019-11-20 05:33:24,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:33:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:24,993 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 05:33:24,993 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569267076] [2019-11-20 05:33:24,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:33:24,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 05:33:24,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324821046] [2019-11-20 05:33:25,057 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:33:25,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:33:25,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:33:25,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:33:25,058 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:33:25,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:25,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:33:25,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:33:25,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2019-11-20 05:33:25,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:33:25,059 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:33:25,087 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 05:33:25,098 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 05:33:25,106 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 05:33:25,122 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 05:33:25,218 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:33:25,219 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:33:25,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:33:25,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:33:25,235 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_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:33:25,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:33:25,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:33:25,249 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_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:33:25,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:33:25,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:33:25,261 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=-3, ULTIMATE.start_main_~N~0=-3} Honda state: {ULTIMATE.start_main_~j~0=-3, ULTIMATE.start_main_~N~0=-3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:33:25,268 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:33:25,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:33:25,297 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:33:25,299 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:33:25,299 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:33:25,299 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:33:25,299 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:33:25,299 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:33:25,299 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:25,299 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:33:25,299 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:33:25,300 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2019-11-20 05:33:25,300 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:33:25,300 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:33:25,302 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 05:33:25,306 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 05:33:25,313 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 05:33:25,317 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 05:33:25,399 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:33:25,404 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:33:25,419 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 05:33:25,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:33:25,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:33:25,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:33:25,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:33:25,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:33:25,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:25,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,457 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 05:33:25,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:33:25,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:33:25,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:33:25,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:33:25,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:33:25,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:33:25,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:25,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,481 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 05:33:25,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:33:25,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:33:25,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:33:25,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:33:25,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:33:25,495 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 05:33:25,504 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,520 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 05:33:25,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:33:25,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:33:25,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:33:25,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:33:25,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:33:25,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:33:25,525 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 05:33:25,530 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:33:25,534 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:33:25,535 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_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:25,549 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:33:25,549 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:33:25,549 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:33:25,550 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 05:33:25,555 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 05:33:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:25,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:33:25,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:25,625 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:33:25,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:25,638 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 05:33:25,650 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 05:33:25,651 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-20 05:33:25,697 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2019-11-20 05:33:25,698 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 05:33:25,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:33:25,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-11-20 05:33:25,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-20 05:33:25,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:25,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-20 05:33:25,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:25,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-20 05:33:25,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:25,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-11-20 05:33:25,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 05:33:25,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-20 05:33:25,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-20 05:33:25,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-20 05:33:25,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-20 05:33:25,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:33:25,713 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 05:33:25,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-20 05:33:25,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-11-20 05:33:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 05:33:25,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-11-20 05:33:25,739 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-20 05:33:25,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:33:25,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:33:25,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:33:25,743 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 4 states. [2019-11-20 05:33:25,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:33:25,773 INFO L93 Difference]: Finished difference Result 11 states and 15 transitions. [2019-11-20 05:33:25,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 05:33:25,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-11-20 05:33:25,774 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-20 05:33:25,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 15 transitions. [2019-11-20 05:33:25,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 05:33:25,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 05:33:25,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2019-11-20 05:33:25,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:33:25,776 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-20 05:33:25,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2019-11-20 05:33:25,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2019-11-20 05:33:25,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 05:33:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-20 05:33:25,777 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 05:33:25,777 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 05:33:25,777 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 05:33:25,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-20 05:33:25,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 05:33:25,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:33:25,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:33:25,779 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 05:33:25,779 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 05:33:25,779 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 91#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 93#L19-2 [2019-11-20 05:33:25,779 INFO L796 eck$LassoCheckResult]: Loop: 93#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 93#L19-2 [2019-11-20 05:33:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:25,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-20 05:33:25,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:33:25,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800712683] [2019-11-20 05:33:25,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:33:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:25,787 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:33:25,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:25,787 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-20 05:33:25,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:33:25,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246957299] [2019-11-20 05:33:25,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:33:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:25,793 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:33:25,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:25,794 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-20 05:33:25,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:33:25,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167960173] [2019-11-20 05:33:25,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:33:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:25,803 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:33:25,814 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:33:25,814 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:33:25,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:33:25,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:33:25,815 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:33:25,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:25,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:33:25,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:33:25,815 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2019-11-20 05:33:25,815 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:33:25,816 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:33:25,817 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 05:33:25,821 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 05:33:25,827 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 05:33:25,868 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:33:25,868 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:33:25,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:33:25,888 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:33:25,889 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_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:25,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:33:25,904 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:25,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:33:25,925 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 05:33:25,934 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:33:25,937 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:33:25,937 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:33:25,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:33:25,937 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:33:25,937 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:33:25,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:25,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:33:25,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:33:25,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2019-11-20 05:33:25,938 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:33:25,938 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:33:25,939 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 05:33:25,943 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 05:33:25,952 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 05:33:26,005 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:33:26,005 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:26,018 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 05:33:26,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:33:26,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:33:26,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:33:26,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:33:26,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:33:26,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:26,048 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 05:33:26,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:33:26,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:33:26,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:33:26,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:33:26,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:33:26,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:33:26,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,055 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:33:26,058 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 05:33:26,058 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_0771dff1-7ffd-4607-b7bb-1643f67bde86/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) [2019-11-20 05:33:26,071 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:33:26,071 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:33:26,071 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:33:26,071 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-20 05:33:26,074 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,101 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,102 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 05:33:26,102 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 05:33:26,103 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-20 05:33:26,115 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 14 states and 19 transitions. Complement of second has 5 states. [2019-11-20 05:33:26,116 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 05:33:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 05:33:26,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-20 05:33:26,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-20 05:33:26,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:26,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-20 05:33:26,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:26,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-20 05:33:26,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:26,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2019-11-20 05:33:26,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 05:33:26,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2019-11-20 05:33:26,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-20 05:33:26,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2019-11-20 05:33:26,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2019-11-20 05:33:26,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:33:26,120 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2019-11-20 05:33:26,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2019-11-20 05:33:26,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2019-11-20 05:33:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 05:33:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-11-20 05:33:26,121 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-20 05:33:26,122 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-20 05:33:26,122 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 05:33:26,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-11-20 05:33:26,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 05:33:26,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:33:26,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:33:26,123 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2019-11-20 05:33:26,123 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 05:33:26,123 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 141#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 142#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 145#L19-2 assume !(main_~j~0 > 0); 146#L19-3 main_~i~0 := main_~i~0 - 1; 143#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 144#L19-2 [2019-11-20 05:33:26,123 INFO L796 eck$LassoCheckResult]: Loop: 144#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 144#L19-2 [2019-11-20 05:33:26,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:26,123 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2019-11-20 05:33:26,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:33:26,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905414442] [2019-11-20 05:33:26,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:33:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:33:26,211 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905414442] [2019-11-20 05:33:26,211 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201731037] [2019-11-20 05:33:26,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-20 05:33:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:33:26,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:33:26,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:33:26,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-11-20 05:33:26,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334022757] [2019-11-20 05:33:26,285 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 05:33:26,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:26,286 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2019-11-20 05:33:26,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:33:26,286 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545008586] [2019-11-20 05:33:26,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:33:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:33:26,300 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:33:26,314 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:33:26,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:33:26,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:33:26,315 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:33:26,315 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:33:26,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:33:26,315 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:33:26,316 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2019-11-20 05:33:26,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:33:26,316 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:33:26,317 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 05:33:26,323 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 05:33:26,331 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 05:33:26,380 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:33:26,380 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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) [2019-11-20 05:33:26,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:33:26,393 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,398 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:33:26,399 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:33:26,417 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:33:26,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:33:26,443 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:33:26,446 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:33:26,446 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:33:26,446 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:33:26,446 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:33:26,446 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:33:26,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,447 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:33:26,447 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:33:26,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2019-11-20 05:33:26,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:33:26,447 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:33:26,449 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 05:33:26,452 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 05:33:26,459 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 05:33:26,505 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:33:26,506 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:26,513 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 05:33:26,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:33:26,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:33:26,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:33:26,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:33:26,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:33:26,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0771dff1-7ffd-4607-b7bb-1643f67bde86/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 05:33:26,534 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 05:33:26,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:33:26,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:33:26,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:33:26,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:33:26,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:33:26,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:33:26,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,542 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:33:26,544 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:33:26,544 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_0771dff1-7ffd-4607-b7bb-1643f67bde86/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:33:26,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:33:26,548 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:33:26,548 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:33:26,548 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-20 05:33:26,551 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 05:33:26,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,586 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,586 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 05:33:26,586 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 05:33:26,586 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-20 05:33:26,603 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2019-11-20 05:33:26,604 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 05:33:26,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 05:33:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-20 05:33:26,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-20 05:33:26,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:26,604 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 05:33:26,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,631 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,631 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 05:33:26,632 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 05:33:26,632 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-20 05:33:26,640 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2019-11-20 05:33:26,642 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 05:33:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 05:33:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-20 05:33:26,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-20 05:33:26,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:26,643 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 05:33:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:33:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:33:26,672 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:33:26,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:33:26,673 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 05:33:26,673 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 1 loop predicates [2019-11-20 05:33:26,673 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-20 05:33:26,688 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2019-11-20 05:33:26,689 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 05:33:26,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 05:33:26,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-11-20 05:33:26,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-20 05:33:26,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:26,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-20 05:33:26,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:26,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-20 05:33:26,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:33:26,691 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2019-11-20 05:33:26,691 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:33:26,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-11-20 05:33:26,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 05:33:26,692 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 05:33:26,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 05:33:26,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:33:26,692 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:33:26,692 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:33:26,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:33:26,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 05:33:26,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-20 05:33:26,693 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2019-11-20 05:33:26,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:33:26,693 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-20 05:33:26,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 05:33:26,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-20 05:33:26,694 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:33:26,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:33:26,694 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 05:33:26,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 05:33:26,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 05:33:26,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:33:26,694 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:33:26,695 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:33:26,695 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:33:26,695 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 05:33:26,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:33:26,695 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:33:26,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 05:33:26,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:33:26 BoogieIcfgContainer [2019-11-20 05:33:26,716 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 05:33:26,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:33:26,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:33:26,717 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:33:26,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:33:24" (3/4) ... [2019-11-20 05:33:26,721 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 05:33:26,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:33:26,725 INFO L168 Benchmark]: Toolchain (without parser) took 2633.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.8 MB in the beginning and 830.0 MB in the end (delta: 118.8 MB). Peak memory consumption was 249.9 MB. Max. memory is 11.5 GB. [2019-11-20 05:33:26,727 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:33:26,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:33:26,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.32 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 05:33:26,730 INFO L168 Benchmark]: Boogie Preprocessor took 14.54 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 05:33:26,730 INFO L168 Benchmark]: RCFGBuilder took 220.30 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:33:26,733 INFO L168 Benchmark]: BuchiAutomizer took 2032.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 830.0 MB in the end (delta: 277.1 MB). Peak memory consumption was 277.1 MB. Max. memory is 11.5 GB. [2019-11-20 05:33:26,734 INFO L168 Benchmark]: Witness Printer took 5.34 ms. Allocated memory is still 1.2 GB. Free memory is still 830.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:33:26,736 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.32 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 14.54 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 220.30 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2032.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 830.0 MB in the end (delta: 277.1 MB). Peak memory consumption was 277.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.34 ms. Allocated memory is still 1.2 GB. Free memory is still 830.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 25 SDslu, 13 SDs, 0 SdLazy, 34 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax203 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...