./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:21:12,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:21:12,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:21:12,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:21:12,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:21:12,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:21:12,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:21:12,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:21:12,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:21:12,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:21:12,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:21:12,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:21:12,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:21:12,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:21:12,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:21:12,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:21:12,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:21:12,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:21:12,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:21:12,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:21:12,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:21:12,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:21:12,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:21:12,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:21:12,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:21:12,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:21:12,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:21:12,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:21:12,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:21:12,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:21:12,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:21:12,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:21:12,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:21:12,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:21:12,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:21:12,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:21:12,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:21:12,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:21:12,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:21:12,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:21:12,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:21:12,195 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 22:21:12,223 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:21:12,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:21:12,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:21:12,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:21:12,228 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:21:12,228 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 22:21:12,229 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 22:21:12,229 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 22:21:12,229 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 22:21:12,229 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 22:21:12,231 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 22:21:12,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:21:12,232 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:21:12,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:21:12,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:21:12,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 22:21:12,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 22:21:12,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 22:21:12,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:21:12,234 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 22:21:12,235 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:21:12,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 22:21:12,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:21:12,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:21:12,236 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 22:21:12,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:21:12,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:21:12,237 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 22:21:12,241 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 22:21:12,241 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_266906fb-f19e-4323-aac4-52f21fbaaf38/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2019-11-15 22:21:12,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:21:12,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:21:12,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:21:12,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:21:12,317 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:21:12,320 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-15 22:21:12,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/data/a9916237e/8cde49895a924111a7d9b109cfda1b5a/FLAG5dae94b39 [2019-11-15 22:21:12,826 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:21:12,827 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-15 22:21:12,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/data/a9916237e/8cde49895a924111a7d9b109cfda1b5a/FLAG5dae94b39 [2019-11-15 22:21:12,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/data/a9916237e/8cde49895a924111a7d9b109cfda1b5a [2019-11-15 22:21:12,860 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:21:12,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:21:12,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:21:12,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:21:12,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:21:12,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:21:12" (1/1) ... [2019-11-15 22:21:12,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a26a190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:12, skipping insertion in model container [2019-11-15 22:21:12,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:21:12" (1/1) ... [2019-11-15 22:21:12,880 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:21:12,901 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:21:13,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:21:13,149 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:21:13,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:21:13,185 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:21:13,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13 WrapperNode [2019-11-15 22:21:13,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:21:13,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:21:13,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:21:13,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:21:13,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:21:13,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:21:13,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:21:13,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:21:13,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... [2019-11-15 22:21:13,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:21:13,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:21:13,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:21:13,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:21:13,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:21:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:21:13,429 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:21:13,429 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 22:21:13,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:21:13 BoogieIcfgContainer [2019-11-15 22:21:13,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:21:13,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 22:21:13,431 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 22:21:13,435 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 22:21:13,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:21:13,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 10:21:12" (1/3) ... [2019-11-15 22:21:13,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d298da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:21:13, skipping insertion in model container [2019-11-15 22:21:13,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:21:13,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:13" (2/3) ... [2019-11-15 22:21:13,439 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d298da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:21:13, skipping insertion in model container [2019-11-15 22:21:13,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:21:13,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:21:13" (3/3) ... [2019-11-15 22:21:13,441 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2019-11-15 22:21:13,483 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 22:21:13,483 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 22:21:13,483 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 22:21:13,483 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:21:13,483 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:21:13,483 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 22:21:13,483 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:21:13,484 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 22:21:13,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 22:21:13,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:21:13,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:21:13,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:21:13,521 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 22:21:13,521 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:21:13,521 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 22:21:13,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 22:21:13,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:21:13,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:21:13,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:21:13,523 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 22:21:13,523 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:21:13,531 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 9#L21-2true [2019-11-15 22:21:13,531 INFO L793 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~i~0 < main_~n~0); 3#L21true assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 9#L21-2true [2019-11-15 22:21:13,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:13,537 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-15 22:21:13,545 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:13,545 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326493673] [2019-11-15 22:21:13,545 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:13,545 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:13,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:13,641 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:21:13,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:13,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2019-11-15 22:21:13,643 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:13,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436767252] [2019-11-15 22:21:13,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:13,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:13,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:13,655 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:21:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:13,657 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2019-11-15 22:21:13,657 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:13,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764416393] [2019-11-15 22:21:13,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:13,658 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:13,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:13,680 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:21:13,868 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-11-15 22:21:13,889 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:21:13,890 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:21:13,890 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:21:13,890 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:21:13,890 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:21:13,891 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:13,891 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:21:13,891 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:21:13,891 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2019-11-15 22:21:13,891 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:21:13,892 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:21:13,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:13,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:13,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:13,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,053 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:21:14,054 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:14,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:21:14,081 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:21:14,081 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_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:14,104 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:21:14,109 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:21:14,109 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: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:14,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:21:14,129 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:21:14,129 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:14,151 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:21:14,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:21:14,167 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,364 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:21:14,366 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:21:14,366 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:21:14,367 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:21:14,367 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:21:14,367 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:21:14,367 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,367 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:21:14,368 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:21:14,368 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2019-11-15 22:21:14,368 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:21:14,368 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:21:14,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,475 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:21:14,481 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:21:14,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:21:14,485 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:14,485 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:21:14,486 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:14,488 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:14,489 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:14,494 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:21:14,498 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:21:14,504 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:21:14,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:21:14,506 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:14,506 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:14,506 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:14,507 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:14,518 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:21:14,519 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:21:14,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:21:14,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:21:14,533 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:14,534 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:14,534 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:14,534 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:14,540 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:21:14,540 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:21:14,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:21:14,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:21:14,554 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:14,554 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:21:14,554 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:14,554 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:14,554 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:14,555 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:21:14,556 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:21:14,581 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:21:14,587 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:21:14,588 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:21:14,590 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:21:14,590 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:21:14,590 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:21:14,591 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-11-15 22:21:14,593 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:21:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:14,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:21:14,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:14,657 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:21:14,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:21:14,674 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:21:14,675 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-15 22:21:14,725 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2019-11-15 22:21:14,727 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 [2019-11-15 22:21:14,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:21:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-15 22:21:14,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-15 22:21:14,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:14,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-15 22:21:14,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:14,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-15 22:21:14,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:14,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-11-15 22:21:14,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:21:14,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2019-11-15 22:21:14,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-15 22:21:14,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-15 22:21:14,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-15 22:21:14,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:21:14,744 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-15 22:21:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-15 22:21:14,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-15 22:21:14,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-15 22:21:14,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2019-11-15 22:21:14,766 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-15 22:21:14,767 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-15 22:21:14,767 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 22:21:14,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2019-11-15 22:21:14,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:21:14,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:21:14,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:21:14,768 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-15 22:21:14,768 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:21:14,768 INFO L791 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 77#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 78#L21-2 assume !!(main_~i~0 < main_~n~0); 72#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 73#L21-2 [2019-11-15 22:21:14,768 INFO L793 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~i~0 < main_~n~0); 79#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 73#L21-2 [2019-11-15 22:21:14,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:14,769 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2019-11-15 22:21:14,769 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:14,769 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053143601] [2019-11-15 22:21:14,769 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:14,769 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:14,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:14,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:21:14,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053143601] [2019-11-15 22:21:14,808 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:21:14,808 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 22:21:14,808 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164275271] [2019-11-15 22:21:14,811 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-15 22:21:14,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:14,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2019-11-15 22:21:14,811 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:14,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393514602] [2019-11-15 22:21:14,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:14,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:14,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:14,820 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:21:14,859 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:21:14,860 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:21:14,860 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:21:14,860 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:21:14,860 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:21:14,860 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,860 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:21:14,860 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:21:14,861 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2019-11-15 22:21:14,861 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:21:14,861 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:21:14,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:14,956 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:21:14,957 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:14,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:21:14,969 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:21:14,969 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_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:14,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:21:14,980 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:21:14,980 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_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:14,988 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:14,999 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:21:15,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:21:15,152 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:21:15,154 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:21:15,154 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:21:15,154 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:21:15,154 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:21:15,154 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:21:15,154 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:15,154 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:21:15,155 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:21:15,155 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2019-11-15 22:21:15,155 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:21:15,155 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:21:15,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,248 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:21:15,248 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:21:15,249 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:21:15,250 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:15,250 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:15,250 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:15,250 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:15,252 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:21:15,252 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:21:15,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:21:15,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:21:15,274 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:15,275 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:15,275 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:15,275 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:15,278 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:21:15,279 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:21:15,284 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:21:15,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:21:15,287 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:15,288 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:21:15,288 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:15,288 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:15,288 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:15,291 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:21:15,291 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:21:15,299 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:21:15,309 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:21:15,313 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:21:15,313 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:21:15,314 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:21:15,314 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:21:15,314 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-11-15 22:21:15,315 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:21:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:15,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:21:15,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:15,356 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:21:15,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:15,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:21:15,357 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:21:15,357 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-15 22:21:15,369 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2019-11-15 22:21:15,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:21:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:21:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-15 22:21:15,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-15 22:21:15,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:15,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-15 22:21:15,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:15,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-15 22:21:15,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:15,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-11-15 22:21:15,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:21:15,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2019-11-15 22:21:15,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-15 22:21:15,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-15 22:21:15,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2019-11-15 22:21:15,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:21:15,376 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-11-15 22:21:15,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2019-11-15 22:21:15,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-15 22:21:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 22:21:15,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2019-11-15 22:21:15,382 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-11-15 22:21:15,382 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:21:15,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:21:15,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:21:15,387 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2019-11-15 22:21:15,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:21:15,396 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2019-11-15 22:21:15,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:21:15,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2019-11-15 22:21:15,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:21:15,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2019-11-15 22:21:15,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-15 22:21:15,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-15 22:21:15,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-15 22:21:15,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:21:15,399 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-15 22:21:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-15 22:21:15,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-15 22:21:15,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 22:21:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-11-15 22:21:15,402 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-15 22:21:15,402 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-15 22:21:15,402 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 22:21:15,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-11-15 22:21:15,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:21:15,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:21:15,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:21:15,403 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2019-11-15 22:21:15,403 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:21:15,404 INFO L791 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 161#L21-2 assume !!(main_~i~0 < main_~n~0); 157#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 158#L21-2 assume !!(main_~i~0 < main_~n~0); 155#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 156#L21-2 assume !!(main_~i~0 < main_~n~0); 164#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 162#L21-2 [2019-11-15 22:21:15,404 INFO L793 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~i~0 < main_~n~0); 163#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 162#L21-2 [2019-11-15 22:21:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:15,404 INFO L82 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2019-11-15 22:21:15,404 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:15,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365629663] [2019-11-15 22:21:15,405 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:15,405 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:15,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:15,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 22:21:15,435 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365629663] [2019-11-15 22:21:15,435 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101888279] [2019-11-15 22:21:15,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:21:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:15,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 22:21:15,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:15,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 22:21:15,502 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 22:21:15,503 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2019-11-15 22:21:15,503 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952165266] [2019-11-15 22:21:15,503 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-15 22:21:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:15,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2019-11-15 22:21:15,504 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:15,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744053935] [2019-11-15 22:21:15,504 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:15,505 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:15,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:15,512 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:21:15,534 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:21:15,535 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:21:15,535 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:21:15,535 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:21:15,535 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:21:15,535 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:15,535 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:21:15,536 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:21:15,536 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2019-11-15 22:21:15,536 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:21:15,536 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:21:15,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,626 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:21:15,627 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:21:15,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:15,645 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:21:15,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:21:15,666 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:15,864 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:21:15,867 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:21:15,867 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:21:15,868 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:21:15,868 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:21:15,868 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:21:15,868 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:15,868 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:21:15,868 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:21:15,869 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2019-11-15 22:21:15,869 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:21:15,869 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:21:15,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:15,977 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:21:15,977 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:21:15,978 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 [2019-11-15 22:21:15,979 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:15,979 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:21:15,979 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:15,979 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:15,979 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:15,980 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:21:15,980 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:21:15,984 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:21:16,001 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 22:21:16,001 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:21:16,002 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:21:16,002 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:21:16,002 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:21:16,002 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2019-11-15 22:21:16,003 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:21:16,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:16,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:21:16,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:16,052 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:21:16,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:21:16,054 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:21:16,054 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-15 22:21:16,066 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2019-11-15 22:21:16,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:21:16,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:21:16,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-15 22:21:16,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-15 22:21:16,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:16,069 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:21:16,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:16,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:21:16,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:16,111 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:21:16,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:21:16,113 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:21:16,113 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-15 22:21:16,123 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2019-11-15 22:21:16,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:21:16,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:21:16,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-15 22:21:16,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-15 22:21:16,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:16,128 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:21:16,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:16,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:21:16,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:16,174 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:21:16,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:21:16,175 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 22:21:16,175 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-15 22:21:16,186 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 4 states. [2019-11-15 22:21:16,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:21:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:21:16,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-15 22:21:16,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-15 22:21:16,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:16,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-15 22:21:16,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:16,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2019-11-15 22:21:16,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:16,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2019-11-15 22:21:16,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 22:21:16,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2019-11-15 22:21:16,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-15 22:21:16,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-15 22:21:16,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2019-11-15 22:21:16,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:21:16,195 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-11-15 22:21:16,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2019-11-15 22:21:16,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2019-11-15 22:21:16,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-15 22:21:16,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-11-15 22:21:16,197 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-15 22:21:16,197 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:21:16,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:21:16,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:21:16,198 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 4 states. [2019-11-15 22:21:16,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:21:16,209 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-15 22:21:16,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:21:16,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2019-11-15 22:21:16,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-15 22:21:16,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2019-11-15 22:21:16,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-15 22:21:16,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-15 22:21:16,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2019-11-15 22:21:16,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:21:16,211 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-11-15 22:21:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2019-11-15 22:21:16,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2019-11-15 22:21:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-15 22:21:16,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-11-15 22:21:16,212 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-11-15 22:21:16,213 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-11-15 22:21:16,213 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 22:21:16,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2019-11-15 22:21:16,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 22:21:16,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:21:16,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:21:16,214 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 22:21:16,214 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-11-15 22:21:16,214 INFO L791 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 373#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 369#L21-2 [2019-11-15 22:21:16,214 INFO L793 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~i~0 < main_~n~0); 370#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 371#L21-2 assume !!(main_~i~0 < main_~n~0); 368#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 369#L21-2 [2019-11-15 22:21:16,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:16,215 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2019-11-15 22:21:16,215 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:16,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736165623] [2019-11-15 22:21:16,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:16,216 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:16,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:16,232 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:21:16,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:16,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2019-11-15 22:21:16,233 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:16,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041379105] [2019-11-15 22:21:16,234 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:16,234 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:16,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:16,245 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:21:16,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:16,245 INFO L82 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2019-11-15 22:21:16,245 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:16,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526306208] [2019-11-15 22:21:16,246 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:16,246 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:16,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:21:16,257 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:21:16,299 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:21:16,299 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:21:16,300 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:21:16,300 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:21:16,300 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:21:16,300 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:16,300 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:21:16,300 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:21:16,301 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2019-11-15 22:21:16,301 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:21:16,301 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:21:16,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:16,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:16,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:16,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:16,409 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:21:16,409 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/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 [2019-11-15 22:21:16,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:21:16,414 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_266906fb-f19e-4323-aac4-52f21fbaaf38/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 [2019-11-15 22:21:16,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:21:16,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:21:16,580 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:21:16,582 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:21:16,582 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:21:16,582 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:21:16,582 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:21:16,583 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:21:16,583 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:21:16,583 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:21:16,583 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:21:16,583 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2019-11-15 22:21:16,583 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:21:16,583 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:21:16,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:16,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:16,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:16,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:21:16,738 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:21:16,739 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:21:16,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:21:16,740 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:21:16,740 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:21:16,741 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:21:16,741 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:21:16,741 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:21:16,742 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:21:16,742 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:21:16,746 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:21:16,750 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 22:21:16,750 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:21:16,751 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:21:16,751 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:21:16,751 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:21:16,751 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 [] [2019-11-15 22:21:16,752 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:21:16,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:16,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:21:16,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:16,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:21:16,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:21:16,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 22:21:16,803 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 22:21:16,804 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2019-11-15 22:21:16,818 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2019-11-15 22:21:16,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:21:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:21:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-15 22:21:16,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-15 22:21:16,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:16,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-15 22:21:16,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:16,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-15 22:21:16,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:21:16,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2019-11-15 22:21:16,822 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:21:16,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-15 22:21:16,822 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 22:21:16,822 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 22:21:16,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 22:21:16,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:21:16,823 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:21:16,823 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:21:16,823 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:21:16,823 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 22:21:16,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:21:16,823 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:21:16,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 22:21:16,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 10:21:16 BoogieIcfgContainer [2019-11-15 22:21:16,831 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 22:21:16,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:21:16,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:21:16,831 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:21:16,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:21:13" (3/4) ... [2019-11-15 22:21:16,836 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:21:16,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:21:16,838 INFO L168 Benchmark]: Toolchain (without parser) took 3976.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:21:16,838 INFO L168 Benchmark]: CDTParser took 1.82 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:21:16,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:21:16,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:21:16,840 INFO L168 Benchmark]: Boogie Preprocessor took 14.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:21:16,841 INFO L168 Benchmark]: RCFGBuilder took 203.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:21:16,841 INFO L168 Benchmark]: BuchiAutomizer took 3399.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:21:16,842 INFO L168 Benchmark]: Witness Printer took 4.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:21:16,845 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.82 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 203.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3399.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * j + m and consists of 4 locations. One deterministic module has affine ranking function -1 * j + m and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 36 SDslu, 11 SDs, 0 SdLazy, 32 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...