./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 ac99a20a7aff68d4303ed37ca9ad8305a1f8cf0d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:35:24,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:35:24,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:35:24,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:35:24,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:35:24,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:35:24,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:35:24,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:35:24,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:35:24,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:35:24,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:35:24,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:35:24,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:35:24,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:35:24,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:35:24,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:35:24,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:35:24,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:35:24,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:35:24,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:35:24,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:35:24,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:35:24,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:35:24,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:35:24,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:35:24,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:35:24,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:35:24,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:35:24,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:35:24,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:35:24,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:35:24,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:35:24,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:35:24,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:35:24,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:35:24,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:35:24,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:35:24,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:35:24,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:35:24,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:35:24,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:35:24,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:35:24,247 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:35:24,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:35:24,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:35:24,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:35:24,248 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:35:24,248 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:35:24,249 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:35:24,249 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:35:24,249 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:35:24,249 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:35:24,249 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:35:24,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:35:24,249 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:35:24,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:35:24,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:35:24,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:35:24,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:35:24,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:35:24,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:35:24,250 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:35:24,250 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:35:24,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:35:24,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:35:24,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:35:24,251 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:35:24,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:35:24,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:35:24,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:35:24,251 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:35:24,252 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:35:24,252 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_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 -> ac99a20a7aff68d4303ed37ca9ad8305a1f8cf0d [2019-12-07 18:35:24,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:35:24,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:35:24,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:35:24,365 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:35:24,366 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:35:24,366 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2019-12-07 18:35:24,408 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/data/7cdf6e9fc/c8cb8b485d6140d89d050fa1f0b45af3/FLAG87d316aa0 [2019-12-07 18:35:24,718 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:35:24,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2019-12-07 18:35:24,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/data/7cdf6e9fc/c8cb8b485d6140d89d050fa1f0b45af3/FLAG87d316aa0 [2019-12-07 18:35:24,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/data/7cdf6e9fc/c8cb8b485d6140d89d050fa1f0b45af3 [2019-12-07 18:35:24,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:35:24,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:35:24,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:24,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:35:24,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:35:24,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27140d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24, skipping insertion in model container [2019-12-07 18:35:24,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:35:24,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:35:24,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:24,855 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:35:24,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:24,905 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:35:24,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24 WrapperNode [2019-12-07 18:35:24,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:24,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:24,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:35:24,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:35:24,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:24,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:35:24,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:35:24,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:35:24,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... [2019-12-07 18:35:24,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:35:24,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:35:24,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:35:24,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:35:24,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:35:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:35:25,073 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:35:25,073 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 18:35:25,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:25 BoogieIcfgContainer [2019-12-07 18:35:25,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:35:25,074 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:35:25,074 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:35:25,076 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:35:25,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:35:25,077 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:35:24" (1/3) ... [2019-12-07 18:35:25,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@494109fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:35:25, skipping insertion in model container [2019-12-07 18:35:25,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:35:25,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:24" (2/3) ... [2019-12-07 18:35:25,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@494109fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:35:25, skipping insertion in model container [2019-12-07 18:35:25,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:35:25,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:25" (3/3) ... [2019-12-07 18:35:25,080 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2019-12-07 18:35:25,109 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:35:25,109 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:35:25,109 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:35:25,109 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:35:25,109 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:35:25,109 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:35:25,109 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:35:25,109 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:35:25,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 18:35:25,130 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:35:25,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:25,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:25,135 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:35:25,135 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:35:25,135 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:35:25,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 18:35:25,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:35:25,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:25,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:25,136 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:35:25,136 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:35:25,141 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 4#L21true assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 5#L23-2true [2019-12-07 18:35:25,141 INFO L796 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 8#L25-2true assume !(main_~j~0 < main_~m~0); 7#L25-3true main_~i~0 := 1 + main_~i~0; 5#L23-2true [2019-12-07 18:35:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:25,145 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-12-07 18:35:25,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:25,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623413490] [2019-12-07 18:35:25,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,223 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:25,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:25,224 INFO L82 PathProgramCache]: Analyzing trace with hash 42943, now seen corresponding path program 1 times [2019-12-07 18:35:25,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:25,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805086299] [2019-12-07 18:35:25,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,233 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:25,234 INFO L82 PathProgramCache]: Analyzing trace with hash 29684988, now seen corresponding path program 1 times [2019-12-07 18:35:25,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:25,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528537380] [2019-12-07 18:35:25,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,247 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:25,280 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:25,280 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:25,280 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:25,280 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:25,281 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:35:25,281 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,281 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:25,281 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:25,281 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2019-12-07 18:35:25,281 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:25,281 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:25,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,361 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:25,362 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:25,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:25,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:25,374 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:25,374 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_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:25,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:25,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:25,382 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_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:25,386 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:35:25,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:25,497 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:35:25,498 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:25,499 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:25,499 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:25,499 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:25,499 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:35:25,499 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:25,499 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:25,499 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2019-12-07 18:35:25,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:25,499 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:25,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,550 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:25,554 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,557 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 [2019-12-07 18:35:25,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:25,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:25,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:25,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:25,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:25,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:25,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:25,571 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 [2019-12-07 18:35:25,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:25,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:25,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:25,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:25,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:25,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:25,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:25,583 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 [2019-12-07 18:35:25,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:25,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:25,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:25,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:25,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:25,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:25,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:25,588 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:35:25,591 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:35:25,592 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:25,595 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:35:25,595 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:35:25,596 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:35:25,596 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 18:35:25,599 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:35:25,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:25,629 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:25,630 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:25,638 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:25,639 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:25,657 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 [2019-12-07 18:35:25,658 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-12-07 18:35:25,696 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 42 states and 62 transitions. Complement of second has 8 states. [2019-12-07 18:35:25,696 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 [2019-12-07 18:35:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:35:25,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2019-12-07 18:35:25,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 2 letters. Loop has 3 letters. [2019-12-07 18:35:25,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:25,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2019-12-07 18:35:25,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:25,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 2 letters. Loop has 6 letters. [2019-12-07 18:35:25,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:25,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 62 transitions. [2019-12-07 18:35:25,705 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:35:25,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 14 states and 21 transitions. [2019-12-07 18:35:25,708 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 18:35:25,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 18:35:25,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2019-12-07 18:35:25,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:25,709 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2019-12-07 18:35:25,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2019-12-07 18:35:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-12-07 18:35:25,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 18:35:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 20 transitions. [2019-12-07 18:35:25,727 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2019-12-07 18:35:25,727 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2019-12-07 18:35:25,727 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:35:25,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 20 transitions. [2019-12-07 18:35:25,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:35:25,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:25,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:25,729 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 18:35:25,729 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:35:25,729 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 98#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 99#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 104#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 96#L28-2 [2019-12-07 18:35:25,729 INFO L796 eck$LassoCheckResult]: Loop: 96#L28-2 assume !!(main_~k~0 < main_~N~0 - 1);main_~k~0 := 1 + main_~k~0; 96#L28-2 [2019-12-07 18:35:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash 957581, now seen corresponding path program 1 times [2019-12-07 18:35:25,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:25,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076420397] [2019-12-07 18:35:25,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,744 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:25,744 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times [2019-12-07 18:35:25,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:25,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517119924] [2019-12-07 18:35:25,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,750 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:25,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:25,750 INFO L82 PathProgramCache]: Analyzing trace with hash 29685042, now seen corresponding path program 1 times [2019-12-07 18:35:25,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:25,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747216386] [2019-12-07 18:35:25,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:25,765 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:25,772 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:25,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:25,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:25,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:25,773 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:35:25,773 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:25,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:25,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2019-12-07 18:35:25,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:25,773 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:25,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,804 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:25,805 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:25,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:25,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:25,810 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:25,810 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_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:25,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:25,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:25,819 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:25,819 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:25,823 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:35:25,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:25,932 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:35:25,934 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:25,934 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:25,934 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:25,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:25,934 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:35:25,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:25,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:25,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2019-12-07 18:35:25,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:25,935 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:25,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:25,974 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:25,975 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,978 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 [2019-12-07 18:35:25,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:25,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:25,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:25,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:25,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:25,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:25,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:25,993 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 [2019-12-07 18:35:25,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:25,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:25,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:25,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:25,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:25,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:26,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:26,005 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 [2019-12-07 18:35:26,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:26,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:26,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:26,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:26,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:26,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:26,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:26,010 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:35:26,013 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:35:26,013 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,016 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:35:26,016 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:35:26,017 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:35:26,017 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2019-12-07 18:35:26,019 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:35:26,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,036 INFO L264 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,036 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,040 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,040 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:26,040 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 [2019-12-07 18:35:26,041 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 20 transitions. cyclomatic complexity: 10 Second operand 2 states. [2019-12-07 18:35:26,056 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 20 transitions. cyclomatic complexity: 10. Second operand 2 states. Result 27 states and 43 transitions. Complement of second has 6 states. [2019-12-07 18:35:26,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:35:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:35:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2019-12-07 18:35:26,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2019-12-07 18:35:26,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:26,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 1 letters. [2019-12-07 18:35:26,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:26,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 18:35:26,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:26,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 43 transitions. [2019-12-07 18:35:26,060 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 18:35:26,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 18 states and 27 transitions. [2019-12-07 18:35:26,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 18:35:26,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 18:35:26,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2019-12-07 18:35:26,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:26,061 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2019-12-07 18:35:26,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2019-12-07 18:35:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 18:35:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 18:35:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2019-12-07 18:35:26,063 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2019-12-07 18:35:26,063 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2019-12-07 18:35:26,063 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:35:26,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2019-12-07 18:35:26,064 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 18:35:26,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:26,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:26,065 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:35:26,065 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:35:26,065 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 181#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 182#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 180#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 188#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 175#L28-3 main_~i~0 := main_~k~0; 186#L25-2 [2019-12-07 18:35:26,065 INFO L796 eck$LassoCheckResult]: Loop: 186#L25-2 assume !(main_~j~0 < main_~m~0); 187#L25-3 main_~i~0 := 1 + main_~i~0; 189#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 186#L25-2 [2019-12-07 18:35:26,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,065 INFO L82 PathProgramCache]: Analyzing trace with hash 920236275, now seen corresponding path program 1 times [2019-12-07 18:35:26,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:26,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275822300] [2019-12-07 18:35:26,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,077 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:26,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,077 INFO L82 PathProgramCache]: Analyzing trace with hash 50233, now seen corresponding path program 2 times [2019-12-07 18:35:26,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:26,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230213634] [2019-12-07 18:35:26,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,083 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:26,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,084 INFO L82 PathProgramCache]: Analyzing trace with hash -17361401, now seen corresponding path program 1 times [2019-12-07 18:35:26,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:26,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715518655] [2019-12-07 18:35:26,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,100 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:26,114 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:26,114 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:26,114 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:26,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:26,114 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:35:26,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:26,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:26,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2019-12-07 18:35:26,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:26,115 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:26,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,162 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:26,162 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:26,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:26,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:26,169 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_1c8aaede-ad88-43ec-855f-dc048d3c7180/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 [2019-12-07 18:35:26,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:26,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:26,176 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:26,176 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:26,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:26,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:26,183 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:26,186 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:35:26,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:26,531 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:35:26,532 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:26,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:26,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:26,533 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:26,533 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:35:26,533 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,533 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:26,533 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:26,533 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2019-12-07 18:35:26,533 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:26,533 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:26,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,581 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:26,581 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,584 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 [2019-12-07 18:35:26,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:26,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:26,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:26,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:26,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:26,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:26,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:26,588 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,592 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 [2019-12-07 18:35:26,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:26,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:26,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:26,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:26,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:26,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:26,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,602 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 [2019-12-07 18:35:26,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:26,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:26,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:26,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:26,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:26,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:26,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:26,606 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:35:26,609 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:35:26,609 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,612 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:35:26,612 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:35:26,612 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:35:26,612 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2019-12-07 18:35:26,614 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:35:26,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,630 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,630 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,634 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,635 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:26,649 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 [2019-12-07 18:35:26,649 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 4 states. [2019-12-07 18:35:26,666 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 31 states and 51 transitions. Complement of second has 8 states. [2019-12-07 18:35:26,666 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 [2019-12-07 18:35:26,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:35:26,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-12-07 18:35:26,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 3 letters. [2019-12-07 18:35:26,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:26,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 18:35:26,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:26,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 6 letters. [2019-12-07 18:35:26,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:26,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 51 transitions. [2019-12-07 18:35:26,669 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:35:26,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 22 states and 34 transitions. [2019-12-07 18:35:26,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 18:35:26,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 18:35:26,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 34 transitions. [2019-12-07 18:35:26,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:26,670 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 34 transitions. [2019-12-07 18:35:26,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 34 transitions. [2019-12-07 18:35:26,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-12-07 18:35:26,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 18:35:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2019-12-07 18:35:26,672 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2019-12-07 18:35:26,672 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2019-12-07 18:35:26,672 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 18:35:26,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 31 transitions. [2019-12-07 18:35:26,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 18:35:26,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:26,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:26,673 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2019-12-07 18:35:26,674 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:35:26,674 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 277#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 278#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 288#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 287#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 276#L28-3 main_~i~0 := main_~k~0; 286#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 273#L28-2 [2019-12-07 18:35:26,674 INFO L796 eck$LassoCheckResult]: Loop: 273#L28-2 assume !!(main_~k~0 < main_~N~0 - 1);main_~k~0 := 1 + main_~k~0; 273#L28-2 [2019-12-07 18:35:26,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446525, now seen corresponding path program 2 times [2019-12-07 18:35:26,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:26,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531074841] [2019-12-07 18:35:26,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,695 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:26,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,696 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 2 times [2019-12-07 18:35:26,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:26,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392483911] [2019-12-07 18:35:26,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:26,700 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:26,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,701 INFO L82 PathProgramCache]: Analyzing trace with hash -416201988, now seen corresponding path program 1 times [2019-12-07 18:35:26,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:26,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147352928] [2019-12-07 18:35:26,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:26,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147352928] [2019-12-07 18:35:26,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:26,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:35:26,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470310395] [2019-12-07 18:35:26,746 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:26,746 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:26,746 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:26,746 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:26,746 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:35:26,746 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,747 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:26,747 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:26,747 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2019-12-07 18:35:26,747 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:26,747 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:26,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,779 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:26,779 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:26,782 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:35:26,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:26,891 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:35:26,893 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:26,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:26,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:26,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:26,893 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:35:26,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,893 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:26,893 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:26,893 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2019-12-07 18:35:26,893 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:26,893 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:26,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:26,921 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:26,921 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,923 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 [2019-12-07 18:35:26,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:26,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:26,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:26,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:26,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:26,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:26,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:26,928 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:35:26,929 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:35:26,929 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:26,932 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:35:26,932 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:35:26,932 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:35:26,932 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2019-12-07 18:35:26,934 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:35:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,947 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,948 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,950 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,950 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:26,950 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 [2019-12-07 18:35:26,950 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2019-12-07 18:35:26,958 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 25 states and 38 transitions. Complement of second has 5 states. [2019-12-07 18:35:26,958 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 [2019-12-07 18:35:26,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:35:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-12-07 18:35:26,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2019-12-07 18:35:26,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:26,959 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:35:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,972 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,972 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,974 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,974 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:26,975 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 [2019-12-07 18:35:26,975 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2019-12-07 18:35:26,981 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 25 states and 38 transitions. Complement of second has 5 states. [2019-12-07 18:35:26,981 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 [2019-12-07 18:35:26,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:35:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-12-07 18:35:26,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2019-12-07 18:35:26,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:26,981 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:35:26,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,994 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,995 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:26,997 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:26,997 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:26,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:26,997 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 [2019-12-07 18:35:26,997 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2019-12-07 18:35:27,006 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 36 states and 60 transitions. Complement of second has 5 states. [2019-12-07 18:35:27,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:35:27,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:35:27,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2019-12-07 18:35:27,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 7 letters. Loop has 1 letters. [2019-12-07 18:35:27,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:27,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 8 letters. Loop has 1 letters. [2019-12-07 18:35:27,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:27,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 18:35:27,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:27,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 60 transitions. [2019-12-07 18:35:27,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 18:35:27,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 22 states and 33 transitions. [2019-12-07 18:35:27,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 18:35:27,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-12-07 18:35:27,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 33 transitions. [2019-12-07 18:35:27,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:27,011 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-07 18:35:27,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 33 transitions. [2019-12-07 18:35:27,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-12-07 18:35:27,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 18:35:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2019-12-07 18:35:27,013 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2019-12-07 18:35:27,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:27,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:27,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:27,016 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. Second operand 4 states. [2019-12-07 18:35:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:27,040 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2019-12-07 18:35:27,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:27,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2019-12-07 18:35:27,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:35:27,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2019-12-07 18:35:27,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-12-07 18:35:27,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-12-07 18:35:27,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2019-12-07 18:35:27,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:27,042 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:35:27,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2019-12-07 18:35:27,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 18:35:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 18:35:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-12-07 18:35:27,043 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:35:27,043 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 18:35:27,043 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 18:35:27,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2019-12-07 18:35:27,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:35:27,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:27,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:27,044 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2019-12-07 18:35:27,044 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:35:27,044 INFO L794 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 533#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 534#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 540#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 539#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 528#L28-3 main_~i~0 := main_~k~0; 538#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 525#L28-2 [2019-12-07 18:35:27,044 INFO L796 eck$LassoCheckResult]: Loop: 525#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 526#L28-3 main_~i~0 := main_~k~0; 530#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 525#L28-2 [2019-12-07 18:35:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:27,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446525, now seen corresponding path program 3 times [2019-12-07 18:35:27,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:27,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2598346] [2019-12-07 18:35:27,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,053 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:27,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:27,053 INFO L82 PathProgramCache]: Analyzing trace with hash 58767, now seen corresponding path program 1 times [2019-12-07 18:35:27,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:27,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611888654] [2019-12-07 18:35:27,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,056 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:27,057 INFO L82 PathProgramCache]: Analyzing trace with hash -538152755, now seen corresponding path program 4 times [2019-12-07 18:35:27,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:27,057 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296542837] [2019-12-07 18:35:27,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,066 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:27,079 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:27,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:27,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:27,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:27,079 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:35:27,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,079 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:27,079 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:27,079 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2019-12-07 18:35:27,079 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:27,079 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:27,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,120 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:27,120 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,123 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:27,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:27,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:27,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=-1, ULTIMATE.start_main_~i~0=-1, ULTIMATE.start_main_~N~0=0} Honda state: {ULTIMATE.start_main_~k~0=-1, ULTIMATE.start_main_~i~0=-1, ULTIMATE.start_main_~N~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:27,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:27,135 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:27,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:27,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:27,142 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:27,142 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:27,146 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:35:27,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:27,298 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:35:27,300 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:27,300 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:27,300 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:27,300 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:27,300 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:35:27,300 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,300 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:27,300 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:27,300 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2019-12-07 18:35:27,300 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:27,300 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:27,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,348 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:27,349 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,352 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 [2019-12-07 18:35:27,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:27,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:27,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:27,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:27,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:27,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:27,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,360 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 [2019-12-07 18:35:27,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:27,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:27,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:27,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:27,363 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:27,363 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:27,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,369 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 [2019-12-07 18:35:27,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:27,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:27,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:27,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:27,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:27,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:27,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:27,373 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,376 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 [2019-12-07 18:35:27,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:27,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:27,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:27,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:27,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:27,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:27,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:27,380 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:35:27,382 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:35:27,382 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:35:27,385 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:35:27,385 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:35:27,385 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-12-07 18:35:27,387 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:35:27,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:27,400 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:27,400 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:27,402 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:27,403 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:27,403 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 [2019-12-07 18:35:27,403 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-12-07 18:35:27,409 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 37 states and 48 transitions. Complement of second has 5 states. [2019-12-07 18:35:27,409 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 [2019-12-07 18:35:27,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:35:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2019-12-07 18:35:27,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 3 letters. [2019-12-07 18:35:27,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:27,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2019-12-07 18:35:27,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:27,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 6 letters. [2019-12-07 18:35:27,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:27,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2019-12-07 18:35:27,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:35:27,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 44 transitions. [2019-12-07 18:35:27,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 18:35:27,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 18:35:27,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2019-12-07 18:35:27,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:27,411 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-12-07 18:35:27,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2019-12-07 18:35:27,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2019-12-07 18:35:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:35:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-12-07 18:35:27,413 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-12-07 18:35:27,413 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-12-07 18:35:27,413 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 18:35:27,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 35 transitions. [2019-12-07 18:35:27,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:35:27,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:27,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:27,414 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2019-12-07 18:35:27,414 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:35:27,414 INFO L794 eck$LassoCheckResult]: Stem: 640#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 635#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 636#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 637#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 651#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 647#L28-3 main_~i~0 := main_~k~0; 648#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 649#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 650#L28-3 main_~i~0 := main_~k~0; 655#L25-2 assume !(main_~j~0 < main_~m~0); 641#L25-3 [2019-12-07 18:35:27,414 INFO L796 eck$LassoCheckResult]: Loop: 641#L25-3 main_~i~0 := 1 + main_~i~0; 642#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 653#L25-2 assume !(main_~j~0 < main_~m~0); 641#L25-3 [2019-12-07 18:35:27,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:27,414 INFO L82 PathProgramCache]: Analyzing trace with hash -538152757, now seen corresponding path program 1 times [2019-12-07 18:35:27,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:27,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764344792] [2019-12-07 18:35:27,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:27,423 INFO L82 PathProgramCache]: Analyzing trace with hash 67693, now seen corresponding path program 3 times [2019-12-07 18:35:27,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:27,423 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898955712] [2019-12-07 18:35:27,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:27,426 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:27,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:27,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1004170083, now seen corresponding path program 2 times [2019-12-07 18:35:27,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:27,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340816006] [2019-12-07 18:35:27,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:27,450 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:27,450 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340816006] [2019-12-07 18:35:27,450 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727599917] [2019-12-07 18:35:27,450 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:27,471 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 18:35:27,471 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 18:35:27,471 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:27,472 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:27,483 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 18:35:27,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:35:27,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-12-07 18:35:27,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461066972] [2019-12-07 18:35:27,494 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:27,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:27,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:27,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:27,494 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:35:27,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:27,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:27,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2019-12-07 18:35:27,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:27,494 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:27,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,530 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:27,530 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:27,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:27,535 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:27,536 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:27,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:27,543 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:27,543 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:27,547 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:35:27,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:27,937 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:35:27,939 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:27,939 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:27,939 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:27,939 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:27,939 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:35:27,940 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,940 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:27,940 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:27,940 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2019-12-07 18:35:27,940 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:27,940 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:27,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:27,978 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:27,978 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,981 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 [2019-12-07 18:35:27,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:27,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:27,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:27,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:27,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:27,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:27,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:27,984 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,988 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 [2019-12-07 18:35:27,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:27,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:27,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:27,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:27,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:27,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:27,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:27,998 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 [2019-12-07 18:35:27,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:27,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:27,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:27,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:27,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:28,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:28,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:28,001 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:35:28,004 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:35:28,004 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:28,019 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:35:28,019 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:35:28,019 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:35:28,019 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 18:35:28,021 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:35:28,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:28,045 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:28,045 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:28,048 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:28,048 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:28,060 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 18:35:28,060 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 16 Second operand 4 states. [2019-12-07 18:35:28,072 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 65 states and 90 transitions. Complement of second has 7 states. [2019-12-07 18:35:28,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:35:28,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:35:28,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-12-07 18:35:28,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2019-12-07 18:35:28,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:28,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 13 letters. Loop has 3 letters. [2019-12-07 18:35:28,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:28,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 6 letters. [2019-12-07 18:35:28,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:28,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 90 transitions. [2019-12-07 18:35:28,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 18:35:28,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 50 states and 68 transitions. [2019-12-07 18:35:28,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-12-07 18:35:28,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-12-07 18:35:28,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 68 transitions. [2019-12-07 18:35:28,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:28,076 INFO L688 BuchiCegarLoop]: Abstraction has 50 states and 68 transitions. [2019-12-07 18:35:28,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 68 transitions. [2019-12-07 18:35:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2019-12-07 18:35:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 18:35:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2019-12-07 18:35:28,078 INFO L711 BuchiCegarLoop]: Abstraction has 34 states and 49 transitions. [2019-12-07 18:35:28,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:28,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:35:28,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:28,079 INFO L87 Difference]: Start difference. First operand 34 states and 49 transitions. Second operand 8 states. [2019-12-07 18:35:28,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:28,131 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2019-12-07 18:35:28,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:35:28,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 62 transitions. [2019-12-07 18:35:28,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2019-12-07 18:35:28,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 62 transitions. [2019-12-07 18:35:28,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2019-12-07 18:35:28,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-12-07 18:35:28,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2019-12-07 18:35:28,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:28,133 INFO L688 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2019-12-07 18:35:28,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2019-12-07 18:35:28,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 23. [2019-12-07 18:35:28,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 18:35:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2019-12-07 18:35:28,135 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-12-07 18:35:28,135 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-12-07 18:35:28,135 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 18:35:28,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 35 transitions. [2019-12-07 18:35:28,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 18:35:28,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:28,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:28,136 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:28,136 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:35:28,136 INFO L794 eck$LassoCheckResult]: Stem: 927#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 925#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 926#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 935#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 937#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 919#L28-3 main_~i~0 := main_~k~0; 938#L25-2 assume !(main_~j~0 < main_~m~0); 928#L25-3 [2019-12-07 18:35:28,137 INFO L796 eck$LassoCheckResult]: Loop: 928#L25-3 main_~i~0 := 1 + main_~i~0; 920#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 921#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 916#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 917#L28-3 main_~i~0 := main_~k~0; 933#L25-2 assume !(main_~j~0 < main_~m~0); 928#L25-3 [2019-12-07 18:35:28,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:28,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446527, now seen corresponding path program 2 times [2019-12-07 18:35:28,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:28,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757590450] [2019-12-07 18:35:28,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:28,145 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:28,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:28,146 INFO L82 PathProgramCache]: Analyzing trace with hash 2016730719, now seen corresponding path program 1 times [2019-12-07 18:35:28,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:28,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364547206] [2019-12-07 18:35:28,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:28,152 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:28,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:28,152 INFO L82 PathProgramCache]: Analyzing trace with hash -504812577, now seen corresponding path program 3 times [2019-12-07 18:35:28,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:28,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676152066] [2019-12-07 18:35:28,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:28,164 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:28,186 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:28,186 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:28,186 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:28,186 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:28,186 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:35:28,186 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:28,186 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:28,186 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:28,186 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2019-12-07 18:35:28,186 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:28,186 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:28,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:28,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:28,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:28,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:28,238 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:28,239 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:28,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:28,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:28,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:28,246 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:28,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:28,250 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:28,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:35:28,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:40,269 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-12-07 18:35:40,271 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:40,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:40,271 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:40,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:40,271 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:35:40,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,272 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:40,272 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:40,272 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2019-12-07 18:35:40,272 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:40,272 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:40,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,331 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:40,332 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,334 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 [2019-12-07 18:35:40,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:40,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:40,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:40,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:40,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:40,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:40,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:40,338 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:35:40,341 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:35:40,341 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,343 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:35:40,343 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:35:40,344 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:35:40,344 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 18:35:40,345 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:35:40,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,358 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,358 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,361 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,361 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:40,387 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2019-12-07 18:35:40,387 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17 Second operand 6 states. [2019-12-07 18:35:40,403 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 49 states and 69 transitions. Complement of second has 7 states. [2019-12-07 18:35:40,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:35:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 18:35:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-12-07 18:35:40,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2019-12-07 18:35:40,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,404 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:35:40,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,415 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,416 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,419 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,419 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:40,453 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2019-12-07 18:35:40,453 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17 Second operand 6 states. [2019-12-07 18:35:40,512 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 56 states and 79 transitions. Complement of second has 10 states. [2019-12-07 18:35:40,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-12-07 18:35:40,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 18:35:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2019-12-07 18:35:40,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 7 letters. Loop has 6 letters. [2019-12-07 18:35:40,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2019-12-07 18:35:40,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 7 letters. Loop has 12 letters. [2019-12-07 18:35:40,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 79 transitions. [2019-12-07 18:35:40,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:35:40,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 43 states and 60 transitions. [2019-12-07 18:35:40,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 18:35:40,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 18:35:40,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 60 transitions. [2019-12-07 18:35:40,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:35:40,516 INFO L688 BuchiCegarLoop]: Abstraction has 43 states and 60 transitions. [2019-12-07 18:35:40,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 60 transitions. [2019-12-07 18:35:40,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2019-12-07 18:35:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 18:35:40,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 52 transitions. [2019-12-07 18:35:40,518 INFO L711 BuchiCegarLoop]: Abstraction has 35 states and 52 transitions. [2019-12-07 18:35:40,518 INFO L591 BuchiCegarLoop]: Abstraction has 35 states and 52 transitions. [2019-12-07 18:35:40,518 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 18:35:40,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 52 transitions. [2019-12-07 18:35:40,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 18:35:40,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:35:40,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:35:40,519 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:40,519 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:35:40,520 INFO L794 eck$LassoCheckResult]: Stem: 1178#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 1172#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 1173#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 1192#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 1189#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 1186#L28-3 main_~i~0 := main_~k~0; 1185#L25-2 assume !(main_~j~0 < main_~m~0); 1179#L25-3 main_~i~0 := 1 + main_~i~0; 1174#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 1175#L25-2 [2019-12-07 18:35:40,520 INFO L796 eck$LassoCheckResult]: Loop: 1175#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 1168#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 1169#L28-3 main_~i~0 := main_~k~0; 1175#L25-2 [2019-12-07 18:35:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:40,520 INFO L82 PathProgramCache]: Analyzing trace with hash -17361401, now seen corresponding path program 4 times [2019-12-07 18:35:40,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:40,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906070050] [2019-12-07 18:35:40,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:40,526 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:40,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:40,527 INFO L82 PathProgramCache]: Analyzing trace with hash 51867, now seen corresponding path program 2 times [2019-12-07 18:35:40,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:40,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358440119] [2019-12-07 18:35:40,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:40,530 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:40,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:40,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1817399595, now seen corresponding path program 5 times [2019-12-07 18:35:40,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:40,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624947908] [2019-12-07 18:35:40,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:40,537 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:40,552 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:40,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:40,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:40,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:40,552 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:35:40,552 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,552 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:40,552 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:40,552 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2019-12-07 18:35:40,552 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:40,552 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:40,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,595 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:40,595 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:40,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:40,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:40,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:40,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:40,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:40,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:40,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:40,616 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:35:40,616 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0, ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~N~0=-7} Honda state: {ULTIMATE.start_main_~k~0=0, ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~N~0=-7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:35:40,620 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:35:40,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:35:40,771 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:35:40,772 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:35:40,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:35:40,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:35:40,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:35:40,773 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:35:40,773 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:35:40,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:35:40,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2019-12-07 18:35:40,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:35:40,773 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:35:40,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:35:40,818 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:35:40,818 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,821 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 [2019-12-07 18:35:40,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:40,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:40,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:40,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:40,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:35:40,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:35:40,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,830 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 [2019-12-07 18:35:40,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:40,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:40,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:40,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:40,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:40,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:40,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:40,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,837 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 [2019-12-07 18:35:40,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:35:40,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:35:40,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:35:40,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:35:40,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:35:40,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:35:40,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:35:40,841 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:35:40,844 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:35:40,844 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c8aaede-ad88-43ec-855f-dc048d3c7180/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:35:40,847 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:35:40,847 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:35:40,847 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:35:40,847 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-12-07 18:35:40,848 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:35:40,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,860 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,860 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,863 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,863 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:40,870 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 [2019-12-07 18:35:40,870 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2019-12-07 18:35:40,876 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 55 states and 81 transitions. Complement of second has 5 states. [2019-12-07 18:35:40,876 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 [2019-12-07 18:35:40,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:35:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2019-12-07 18:35:40,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 18:35:40,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,877 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:35:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,888 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,889 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,891 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,892 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:40,898 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:35:40,898 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2019-12-07 18:35:40,907 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 51 states and 75 transitions. Complement of second has 7 states. [2019-12-07 18:35:40,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:35:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:35:40,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2019-12-07 18:35:40,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 18:35:40,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,908 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 18:35:40,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,920 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,920 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:40,922 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:35:40,922 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:40,930 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 18:35:40,930 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2019-12-07 18:35:40,935 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 69 states and 104 transitions. Complement of second has 4 states. [2019-12-07 18:35:40,936 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 [2019-12-07 18:35:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 18:35:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2019-12-07 18:35:40,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 9 letters. Loop has 3 letters. [2019-12-07 18:35:40,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 12 letters. Loop has 3 letters. [2019-12-07 18:35:40,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 9 letters. Loop has 6 letters. [2019-12-07 18:35:40,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:35:40,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 104 transitions. [2019-12-07 18:35:40,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:35:40,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 0 states and 0 transitions. [2019-12-07 18:35:40,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:35:40,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:35:40,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:35:40,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:35:40,938 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:35:40,938 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:35:40,938 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:35:40,938 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 18:35:40,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:35:40,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:35:40,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:35:40,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:35:40 BoogieIcfgContainer [2019-12-07 18:35:40,942 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:35:40,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:35:40,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:35:40,943 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:35:40,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:25" (3/4) ... [2019-12-07 18:35:40,945 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:35:40,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:35:40,946 INFO L168 Benchmark]: Toolchain (without parser) took 16211.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 939.3 MB in the beginning and 980.1 MB in the end (delta: -40.8 MB). Peak memory consumption was 86.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:40,947 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:40,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -141.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:40,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:40,948 INFO L168 Benchmark]: Boogie Preprocessor took 12.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:40,948 INFO L168 Benchmark]: RCFGBuilder took 135.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:40,948 INFO L168 Benchmark]: BuchiAutomizer took 15868.36 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 40.4 MB). Free memory was 1.1 GB in the beginning and 980.1 MB in the end (delta: 83.8 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:40,949 INFO L168 Benchmark]: Witness Printer took 2.52 ms. Allocated memory is still 1.2 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:40,951 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -141.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 135.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15868.36 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 40.4 MB). Free memory was 1.1 GB in the beginning and 980.1 MB in the end (delta: 83.8 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.52 ms. Allocated memory is still 1.2 GB. Free memory is still 980.1 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 10 terminating modules (2 trivial, 6 deterministic, 2 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. One deterministic module has affine ranking function m + -1 * j and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function n + -1 * i and consists of 6 locations. One nondeterministic module has affine ranking function -1 * k + N and consists of 4 locations. One nondeterministic module has affine ranking function m + -1 * j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.8s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 15.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 61 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 7. Nontrivial modules had stage [5, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 167 SDtfs, 164 SDslu, 80 SDs, 0 SdLazy, 161 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax169 hnf97 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 13.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...