./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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 0.1.24-6b5699a [2019-11-25 08:54:48,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:48,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:48,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:48,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:48,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:48,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:48,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:48,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:48,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:48,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:48,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:48,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:48,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:48,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:48,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:48,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:48,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:48,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:48,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:48,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:48,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:48,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:48,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:48,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:48,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:48,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:48,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:48,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:48,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:48,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:48,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:48,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:48,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:48,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:48,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:48,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:48,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:48,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:48,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:48,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:48,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:54:48,132 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:48,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:48,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:48,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:48,134 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:48,134 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:54:48,134 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:54:48,135 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:54:48,135 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:54:48,135 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:54:48,136 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:54:48,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:48,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:54:48,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:48,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:48,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:54:48,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:54:48,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:54:48,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:48,138 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:54:48,138 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:48,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:54:48,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:48,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:48,139 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:54:48,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:48,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:48,139 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:54:48,140 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:54:48,140 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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 [2019-11-25 08:54:48,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:48,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:48,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:48,316 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:48,316 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:48,317 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-25 08:54:48,366 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/data/81f59a51c/53eb89f0163544b9bc51bbc81f140e8e/FLAG3bac077ea [2019-11-25 08:54:48,772 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:48,772 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-25 08:54:48,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/data/81f59a51c/53eb89f0163544b9bc51bbc81f140e8e/FLAG3bac077ea [2019-11-25 08:54:48,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/data/81f59a51c/53eb89f0163544b9bc51bbc81f140e8e [2019-11-25 08:54:48,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:48,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:48,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:48,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:48,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:48,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:48" (1/1) ... [2019-11-25 08:54:48,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3abcc8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:48, skipping insertion in model container [2019-11-25 08:54:48,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:48" (1/1) ... [2019-11-25 08:54:48,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:48,836 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:48,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:48,991 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:49,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:49,085 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:49,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49 WrapperNode [2019-11-25 08:54:49,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:49,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:49,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:49,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:49,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:49,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:49,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:49,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:49,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... [2019-11-25 08:54:49,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:49,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:49,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:49,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:49,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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 [2019-11-25 08:54:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:49,385 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:49,385 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:54:49,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:49 BoogieIcfgContainer [2019-11-25 08:54:49,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:49,387 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:54:49,387 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:54:49,391 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:54:49,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:49,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:54:48" (1/3) ... [2019-11-25 08:54:49,394 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ebf29e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:54:49, skipping insertion in model container [2019-11-25 08:54:49,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:49,394 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:49" (2/3) ... [2019-11-25 08:54:49,395 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ebf29e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:54:49, skipping insertion in model container [2019-11-25 08:54:49,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:49,397 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:49" (3/3) ... [2019-11-25 08:54:49,399 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2019-11-25 08:54:49,449 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:54:49,449 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:54:49,450 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:54:49,450 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:49,450 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:49,450 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:54:49,451 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:49,451 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:54:49,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-25 08:54:49,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:54:49,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:49,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:49,489 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:54:49,490 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:54:49,490 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:54:49,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-25 08:54:49,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:54:49,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:49,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:49,492 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:54:49,492 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:54:49,499 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 3#L17-2true [2019-11-25 08:54:49,499 INFO L796 eck$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 [2019-11-25 08:54:49,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:49,505 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:54:49,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:49,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751976666] [2019-11-25 08:54:49,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:49,606 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:49,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:49,607 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-11-25 08:54:49,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:49,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932111893] [2019-11-25 08:54:49,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:49,620 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:49,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:49,621 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-11-25 08:54:49,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:49,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110875584] [2019-11-25 08:54:49,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:49,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:49,772 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110875584] [2019-11-25 08:54:49,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:49,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:54:49,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13965028] [2019-11-25 08:54:49,816 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:49,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:49,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:49,817 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:49,817 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:54:49,817 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:49,817 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:49,817 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:49,817 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2019-11-25 08:54:49,818 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:49,818 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:49,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:49,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:49,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:49,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:49,974 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:49,975 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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 [2019-11-25 08:54:49,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:49,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:54:49,999 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:54:50,000 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:50,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:50,015 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,020 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:54:50,021 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:50,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:50,031 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,044 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:54:50,044 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:50,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:50,055 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:50,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:54:50,079 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,100 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:54:50,102 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:50,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:50,102 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:50,102 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:50,102 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:54:50,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:50,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:50,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2019-11-25 08:54:50,103 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:50,103 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:50,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,264 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:50,268 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,277 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 [2019-11-25 08:54:50,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:50,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:50,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:50,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:50,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:54:50,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:54:50,300 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,306 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 [2019-11-25 08:54:50,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:50,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:54:50,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:50,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:50,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:50,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:54:50,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:54:50,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,327 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 [2019-11-25 08:54:50,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:50,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:50,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:50,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:50,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:54:50,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:54:50,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,352 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 [2019-11-25 08:54:50,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:50,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:54:50,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:50,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:50,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:50,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:54:50,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:54:50,359 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:54:50,367 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:54:50,368 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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 [2019-11-25 08:54:50,375 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:54:50,375 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:54:50,376 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:54:50,376 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-25 08:54:50,380 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:54:50,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:50,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:54:50,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:50,424 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:50,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:50,460 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 [2019-11-25 08:54:50,461 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-25 08:54:50,509 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. [2019-11-25 08:54:50,510 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 [2019-11-25 08:54:50,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:54:50,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-11-25 08:54:50,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-25 08:54:50,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:50,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-25 08:54:50,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:50,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-25 08:54:50,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:50,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-11-25 08:54:50,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:54:50,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-25 08:54:50,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-25 08:54:50,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-25 08:54:50,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-25 08:54:50,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:54:50,524 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-25 08:54:50,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-25 08:54:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-11-25 08:54:50,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-25 08:54:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-11-25 08:54:50,549 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-25 08:54:50,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:50,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:54:50,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:54:50,553 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 4 states. [2019-11-25 08:54:50,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:50,583 INFO L93 Difference]: Finished difference Result 11 states and 15 transitions. [2019-11-25 08:54:50,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:54:50,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-11-25 08:54:50,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-25 08:54:50,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 15 transitions. [2019-11-25 08:54:50,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:54:50,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-25 08:54:50,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2019-11-25 08:54:50,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:54:50,587 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-25 08:54:50,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2019-11-25 08:54:50,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2019-11-25 08:54:50,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-25 08:54:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-25 08:54:50,588 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-25 08:54:50,589 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-25 08:54:50,589 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:54:50,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-25 08:54:50,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:54:50,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:50,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:50,590 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:54:50,590 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:54:50,590 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 91#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 93#L19-2 [2019-11-25 08:54:50,590 INFO L796 eck$LassoCheckResult]: Loop: 93#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 93#L19-2 [2019-11-25 08:54:50,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:50,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-25 08:54:50,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:50,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219782182] [2019-11-25 08:54:50,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:50,598 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:50,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:50,598 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-25 08:54:50,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:50,599 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531259950] [2019-11-25 08:54:50,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:50,604 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:50,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:50,605 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-25 08:54:50,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:50,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447686431] [2019-11-25 08:54:50,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:50,614 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:50,632 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:50,632 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:50,632 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:50,632 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:50,632 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:54:50,633 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,633 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:50,633 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:50,633 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2019-11-25 08:54:50,633 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:50,633 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:50,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,694 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:50,694 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:50,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:50,705 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,724 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:54:50,724 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:50,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:50,747 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:50,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:54:50,770 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 [2019-11-25 08:54:50,781 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:54:50,783 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:50,783 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:50,783 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:50,783 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:50,784 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:54:50,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,784 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:50,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:50,784 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2019-11-25 08:54:50,784 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:50,784 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:50,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:50,852 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:50,852 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:50,859 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 [2019-11-25 08:54:50,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:50,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:50,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:50,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:50,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:54:50,864 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 [2019-11-25 08:54:50,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:50,888 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 [2019-11-25 08:54:50,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:50,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:54:50,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:50,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:50,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:50,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:54:50,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:54:50,894 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:54:50,897 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-25 08:54:50,897 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:50,909 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:54:50,910 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:54:50,910 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:54:50,910 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-25 08:54:50,912 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 [2019-11-25 08:54:50,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:50,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:54:50,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:50,940 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:50,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:50,941 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 [2019-11-25 08:54:50,941 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-25 08:54:50,954 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. [2019-11-25 08:54:50,956 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 [2019-11-25 08:54:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:54:50,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-25 08:54:50,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-25 08:54:50,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:50,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-25 08:54:50,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:50,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-25 08:54:50,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:50,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2019-11-25 08:54:50,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:54:50,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2019-11-25 08:54:50,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-25 08:54:50,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2019-11-25 08:54:50,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2019-11-25 08:54:50,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:54:50,959 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2019-11-25 08:54:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2019-11-25 08:54:50,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2019-11-25 08:54:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-25 08:54:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-11-25 08:54:50,961 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-25 08:54:50,961 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-25 08:54:50,961 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:54:50,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-11-25 08:54:50,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:54:50,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:50,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:50,962 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2019-11-25 08:54:50,962 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:54:50,962 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 141#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 142#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 145#L19-2 assume !(main_~j~0 > 0); 146#L19-3 main_~i~0 := main_~i~0 - 1; 143#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 144#L19-2 [2019-11-25 08:54:50,963 INFO L796 eck$LassoCheckResult]: Loop: 144#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 144#L19-2 [2019-11-25 08:54:50,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:50,967 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2019-11-25 08:54:50,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:50,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242020388] [2019-11-25 08:54:50,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:51,038 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242020388] [2019-11-25 08:54:51,038 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196454976] [2019-11-25 08:54:51,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:54:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:51,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:54:51,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:51,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:54:51,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-11-25 08:54:51,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791701991] [2019-11-25 08:54:51,102 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:54:51,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:51,103 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2019-11-25 08:54:51,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:51,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036981740] [2019-11-25 08:54:51,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:51,108 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:51,123 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:51,123 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:51,123 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:51,123 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:51,123 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:54:51,123 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:51,123 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:51,123 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:51,123 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2019-11-25 08:54:51,124 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:51,124 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:51,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:51,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:51,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:51,191 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:51,192 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:51,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:51,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:54:51,209 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:54:51,209 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:51,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:54:51,224 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:54:51,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:54:51,250 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:51,258 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:54:51,260 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:54:51,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:54:51,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:54:51,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:54:51,261 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:54:51,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:51,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:54:51,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:54:51,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2019-11-25 08:54:51,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:54:51,262 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:54:51,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:51,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:51,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:54:51,322 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:54:51,322 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:51,335 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 [2019-11-25 08:54:51,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:51,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:51,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:51,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:51,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:54:51,339 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 [2019-11-25 08:54:51,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:51,356 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 [2019-11-25 08:54:51,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:54:51,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:54:51,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:54:51,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:54:51,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:54:51,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:54:51,360 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 [2019-11-25 08:54:51,363 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:54:51,368 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:54:51,368 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_c061787b-8d68-4ddb-be8d-ced2c6dc2004/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) [2019-11-25 08:54:51,376 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:54:51,376 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:54:51,376 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:54:51,376 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-25 08:54:51,378 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:51,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:51,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:54:51,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:51,414 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:51,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:51,414 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 [2019-11-25 08:54:51,415 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-25 08:54:51,430 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. [2019-11-25 08:54:51,431 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 [2019-11-25 08:54:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:54:51,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-25 08:54:51,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-25 08:54:51,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:51,432 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:54:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:51,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:54:51,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:51,458 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:51,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:51,458 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 [2019-11-25 08:54:51,459 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-25 08:54:51,468 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. [2019-11-25 08:54:51,469 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 [2019-11-25 08:54:51,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:54:51,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-25 08:54:51,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-25 08:54:51,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:51,470 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-25 08:54:51,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:51,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:54:51,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:51,498 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:51,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:51,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:51,499 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 [2019-11-25 08:54:51,499 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-25 08:54:51,514 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. [2019-11-25 08:54:51,515 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 [2019-11-25 08:54:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:54:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-11-25 08:54:51,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-25 08:54:51,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:51,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-25 08:54:51,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:51,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-25 08:54:51,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:54:51,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2019-11-25 08:54:51,517 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:54:51,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-11-25 08:54:51,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:54:51,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:54:51,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:54:51,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:51,518 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:51,518 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:51,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:54:51,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:54:51,519 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2019-11-25 08:54:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:51,519 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-25 08:54:51,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:54:51,520 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-25 08:54:51,520 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:54:51,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:54:51,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:54:51,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:54:51,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:54:51,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:51,521 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:51,521 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:51,521 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:51,521 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:54:51,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:54:51,521 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:54:51,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:54:51,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:54:51 BoogieIcfgContainer [2019-11-25 08:54:51,538 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:54:51,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:51,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:51,539 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:51,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:49" (3/4) ... [2019-11-25 08:54:51,543 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:54:51,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:51,545 INFO L168 Benchmark]: Toolchain (without parser) took 2745.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 948.8 MB in the beginning and 874.8 MB in the end (delta: 74.0 MB). Peak memory consumption was 238.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:51,545 INFO L168 Benchmark]: CDTParser took 0.24 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. [2019-11-25 08:54:51,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:51,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:51,546 INFO L168 Benchmark]: Boogie Preprocessor took 19.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:51,547 INFO L168 Benchmark]: RCFGBuilder took 248.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:51,547 INFO L168 Benchmark]: BuchiAutomizer took 2151.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.8 MB in the end (delta: 264.9 MB). Peak memory consumption was 264.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:51,548 INFO L168 Benchmark]: Witness Printer took 4.20 ms. Allocated memory is still 1.2 GB. Free memory is still 874.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:51,551 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 284.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -207.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 248.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2151.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.8 MB in the end (delta: 264.9 MB). Peak memory consumption was 264.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.20 ms. Allocated memory is still 1.2 GB. Free memory is still 874.8 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 2.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.6s. 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: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...