./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 0.2.0-a4ecdab [2020-11-28 03:11:45,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:45,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:45,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:45,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:45,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:45,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:45,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:45,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:45,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:45,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:45,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:45,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:45,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:45,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:45,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:45,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:45,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:45,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:45,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:45,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:45,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:45,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:45,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:45,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:45,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:45,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:45,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:45,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:45,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:45,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:45,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:45,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:45,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:45,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:45,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:45,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:45,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:45,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:45,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:45,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:45,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:11:45,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:45,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:45,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:45,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:45,380 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:45,380 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:11:45,380 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:11:45,380 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:11:45,380 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:11:45,381 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:11:45,382 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:11:45,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:45,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:11:45,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:45,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:45,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:11:45,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:11:45,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:11:45,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:45,384 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:11:45,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:45,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:11:45,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:45,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:45,385 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:11:45,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:45,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:45,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:45,386 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:11:45,388 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:11:45,388 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2020-11-28 03:11:45,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:45,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:45,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:45,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:45,778 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:45,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2020-11-28 03:11:45,854 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/data/bedb98ea2/528fc7c87e924d9193264fbcb3e7b5f9/FLAG5c2db4a30 [2020-11-28 03:11:46,358 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:46,359 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2020-11-28 03:11:46,368 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/data/bedb98ea2/528fc7c87e924d9193264fbcb3e7b5f9/FLAG5c2db4a30 [2020-11-28 03:11:46,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/data/bedb98ea2/528fc7c87e924d9193264fbcb3e7b5f9 [2020-11-28 03:11:46,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:46,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:46,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:46,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:46,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:46,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:46" (1/1) ... [2020-11-28 03:11:46,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc736fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:46, skipping insertion in model container [2020-11-28 03:11:46,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:46" (1/1) ... [2020-11-28 03:11:46,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:46,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:47,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:47,008 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:47,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:47,041 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:47,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47 WrapperNode [2020-11-28 03:11:47,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:47,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:47,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:47,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:47,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:47,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:47,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:47,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:47,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... [2020-11-28 03:11:47,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:47,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:47,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:47,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:47,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:47,416 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:47,416 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:11:47,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:47 BoogieIcfgContainer [2020-11-28 03:11:47,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:47,420 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:11:47,420 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:11:47,424 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:11:47,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:11:47,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:11:46" (1/3) ... [2020-11-28 03:11:47,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48776871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:11:47, skipping insertion in model container [2020-11-28 03:11:47,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:11:47,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:47" (2/3) ... [2020-11-28 03:11:47,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48776871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:11:47, skipping insertion in model container [2020-11-28 03:11:47,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:11:47,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:47" (3/3) ... [2020-11-28 03:11:47,431 INFO L373 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2020-11-28 03:11:47,532 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:11:47,533 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:11:47,533 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:11:47,533 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:47,533 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:47,534 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:11:47,534 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:47,534 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:11:47,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-28 03:11:47,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:11:47,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:11:47,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:11:47,576 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:11:47,577 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:11:47,577 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:11:47,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-28 03:11:47,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:11:47,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:11:47,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:11:47,579 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:11:47,580 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:11:47,588 INFO L794 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 [2020-11-28 03:11:47,589 INFO L796 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 [2020-11-28 03:11:47,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:47,596 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-11-28 03:11:47,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:47,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182260935] [2020-11-28 03:11:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:47,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:47,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:47,735 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:47,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:47,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2020-11-28 03:11:47,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:47,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063151403] [2020-11-28 03:11:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:47,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:47,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:47,756 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:47,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:47,758 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2020-11-28 03:11:47,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:47,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106664734] [2020-11-28 03:11:47,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:47,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:47,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:47,785 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:47,871 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:11:47,872 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:11:47,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:11:47,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:11:47,872 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:11:47,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:47,873 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:11:47,873 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:11:47,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2020-11-28 03:11:47,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:11:47,873 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:11:47,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:47,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:47,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:47,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:48,100 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:11:48,101 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:48,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:48,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:11:48,127 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:11:48,127 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:48,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:48,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:11:48,156 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:11:48,156 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_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:48,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:48,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:11:48,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:11:48,204 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_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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) [2020-11-28 03:11:48,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:48,241 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:48,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:11:48,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:11:48,418 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:11:48,420 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:11:48,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:11:48,420 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:11:48,420 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:11:48,420 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:11:48,420 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:48,421 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:11:48,421 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:11:48,421 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2020-11-28 03:11:48,421 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:11:48,421 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:11:48,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:48,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:48,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:48,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:48,568 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:11:48,573 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:48,582 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 [2020-11-28 03:11:48,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:48,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:11:48,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:48,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:48,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:48,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:11:48,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:11:48,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:48,618 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 [2020-11-28 03:11:48,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:48,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:48,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:48,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:48,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:11:48,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:11:48,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:48,657 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 [2020-11-28 03:11:48,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:48,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:48,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:48,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:48,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:11:48,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:11:48,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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) [2020-11-28 03:11:48,716 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 [2020-11-28 03:11:48,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:48,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:11:48,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:48,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:48,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:48,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:11:48,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:48,727 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:11:48,735 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:11:48,735 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:11:48,743 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:11:48,743 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:11:48,743 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:11:48,744 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 [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:48,779 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:11:48,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:48,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:48,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:48,882 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:11:48,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:48,903 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 [2020-11-28 03:11:48,904 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-11-28 03:11:48,943 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2020-11-28 03:11:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:11:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:11:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-28 03:11:48,949 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-28 03:11:48,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:48,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-28 03:11:48,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:48,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-28 03:11:48,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:48,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2020-11-28 03:11:48,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:11:48,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2020-11-28 03:11:48,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-28 03:11:48,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-28 03:11:48,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-11-28 03:11:48,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:11:48,966 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-28 03:11:48,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-11-28 03:11:48,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-28 03:11:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:11:48,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-11-28 03:11:48,987 INFO L714 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-28 03:11:48,987 INFO L594 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-28 03:11:48,987 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:11:48,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-11-28 03:11:48,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:11:48,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:11:48,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:11:48,988 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:11:48,988 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:11:48,988 INFO L794 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 [2020-11-28 03:11:48,988 INFO L796 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~i~0 < main_~n~0); 79#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 73#L21-2 [2020-11-28 03:11:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:48,989 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2020-11-28 03:11:48,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:48,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593390598] [2020-11-28 03:11:48,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:49,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593390598] [2020-11-28 03:11:49,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:49,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:49,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518686045] [2020-11-28 03:11:49,037 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:11:49,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:49,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2020-11-28 03:11:49,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:49,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287839785] [2020-11-28 03:11:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:49,043 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:49,047 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:49,048 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:49,101 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:11:49,101 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:11:49,101 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:11:49,101 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:11:49,101 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:11:49,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:49,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:11:49,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:11:49,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2020-11-28 03:11:49,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:11:49,102 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:11:49,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:49,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:49,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:49,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:49,191 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:11:49,191 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:49,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:49,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:11:49,201 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:11:49,201 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_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:49,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:49,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:11:49,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:11:49,226 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_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:49,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:49,249 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/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 [2020-11-28 03:11:49,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:11:49,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:11:49,407 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:11:49,423 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:11:49,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:11:49,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:11:49,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:11:49,424 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:11:49,424 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:49,424 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:11:49,424 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:11:49,424 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2020-11-28 03:11:49,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:11:49,424 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:11:49,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:49,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:49,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:49,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:49,556 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:11:49,556 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:11:49,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:11:49,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:49,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:49,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:49,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:49,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:11:49,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:49,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:11:49,624 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 [2020-11-28 03:11:49,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:49,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:49,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:49,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:49,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:11:49,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:49,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:11:49,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:11:49,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:49,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:11:49,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:49,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:49,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:49,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:11:49,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:49,692 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:11:49,698 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:11:49,699 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:11:49,705 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:11:49,705 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:11:49,706 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:11:49,706 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 [] Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:49,741 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:11:49,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:49,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:49,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:49,786 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:11:49,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:49,787 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 [2020-11-28 03:11:49,787 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-28 03:11:49,800 INFO L75 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. [2020-11-28 03:11:49,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:11:49,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:11:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-28 03:11:49,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-28 03:11:49,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:49,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:11:49,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:49,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2020-11-28 03:11:49,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:49,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2020-11-28 03:11:49,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:11:49,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2020-11-28 03:11:49,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-28 03:11:49,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:11:49,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2020-11-28 03:11:49,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:11:49,807 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-11-28 03:11:49,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2020-11-28 03:11:49,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-28 03:11:49,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 03:11:49,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2020-11-28 03:11:49,809 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-11-28 03:11:49,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:49,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:49,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:49,814 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2020-11-28 03:11:49,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:49,824 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2020-11-28 03:11:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:49,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2020-11-28 03:11:49,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:11:49,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2020-11-28 03:11:49,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-28 03:11:49,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:11:49,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-11-28 03:11:49,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:11:49,826 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-28 03:11:49,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-11-28 03:11:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-11-28 03:11:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 03:11:49,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-11-28 03:11:49,828 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-28 03:11:49,828 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-28 03:11:49,828 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:11:49,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-11-28 03:11:49,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:11:49,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:11:49,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:11:49,829 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2020-11-28 03:11:49,829 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:11:49,829 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 161#L21-2 assume !!(main_~i~0 < main_~n~0); 157#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 158#L21-2 assume !!(main_~i~0 < main_~n~0); 155#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 156#L21-2 assume !!(main_~i~0 < main_~n~0); 164#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 162#L21-2 [2020-11-28 03:11:49,829 INFO L796 eck$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 [2020-11-28 03:11:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:49,830 INFO L82 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2020-11-28 03:11:49,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:49,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438439105] [2020-11-28 03:11:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:11:49,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438439105] [2020-11-28 03:11:49,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151742033] [2020-11-28 03:11:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:11:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:49,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:11:49,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:11:49,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:11:49,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-28 03:11:49,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638798108] [2020-11-28 03:11:49,967 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:11:49,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:49,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2020-11-28 03:11:49,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:49,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633585085] [2020-11-28 03:11:49,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:49,973 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:49,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:49,978 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:50,007 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:11:50,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:11:50,008 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:11:50,008 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:11:50,008 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:11:50,008 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:50,008 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:11:50,008 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:11:50,008 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2020-11-28 03:11:50,008 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:11:50,009 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:11:50,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,129 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:11:50,129 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:50,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:50,144 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:50,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:11:50,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:11:50,316 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:11:50,318 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:11:50,318 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:11:50,318 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:11:50,318 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:11:50,318 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:11:50,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:50,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:11:50,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:11:50,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2020-11-28 03:11:50,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:11:50,319 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:11:50,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,428 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:11:50,428 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:50,436 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 [2020-11-28 03:11:50,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:50,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:11:50,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:50,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:50,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:50,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:11:50,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:11:50,445 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:11:50,458 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-28 03:11:50,458 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:11:50,463 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:11:50,464 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:11:50,464 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:11:50,464 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 [] Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:50,499 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:11:50,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:50,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:50,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:50,548 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:11:50,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:50,550 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 [2020-11-28 03:11:50,550 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-28 03:11:50,560 INFO L75 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. [2020-11-28 03:11:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:11:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:11:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-28 03:11:50,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 03:11:50,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:50,562 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:11:50,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:50,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:50,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:50,602 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:11:50,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:50,604 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 [2020-11-28 03:11:50,604 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-28 03:11:50,612 INFO L75 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. [2020-11-28 03:11:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:11:50,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:11:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-28 03:11:50,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 03:11:50,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:50,614 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:11:50,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:50,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:50,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:50,649 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:11:50,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:50,650 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 [2020-11-28 03:11:50,650 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-28 03:11:50,659 INFO L75 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. [2020-11-28 03:11:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:11:50,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:11:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-11-28 03:11:50,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 03:11:50,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:50,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-28 03:11:50,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:50,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2020-11-28 03:11:50,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:50,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2020-11-28 03:11:50,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:11:50,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2020-11-28 03:11:50,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-28 03:11:50,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:11:50,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2020-11-28 03:11:50,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:11:50,664 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-11-28 03:11:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2020-11-28 03:11:50,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2020-11-28 03:11:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-28 03:11:50,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-11-28 03:11:50,666 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-11-28 03:11:50,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:50,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:50,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:50,667 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 4 states. [2020-11-28 03:11:50,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:50,685 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-11-28 03:11:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:50,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2020-11-28 03:11:50,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:11:50,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2020-11-28 03:11:50,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-28 03:11:50,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-28 03:11:50,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2020-11-28 03:11:50,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:11:50,687 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-11-28 03:11:50,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2020-11-28 03:11:50,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2020-11-28 03:11:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-28 03:11:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2020-11-28 03:11:50,688 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-11-28 03:11:50,688 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-11-28 03:11:50,688 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:11:50,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2020-11-28 03:11:50,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:11:50,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:11:50,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:11:50,689 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:11:50,689 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-11-28 03:11:50,689 INFO L794 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 [2020-11-28 03:11:50,689 INFO L796 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 [2020-11-28 03:11:50,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:50,690 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2020-11-28 03:11:50,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:50,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232797792] [2020-11-28 03:11:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:50,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:50,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:50,716 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:50,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:50,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2020-11-28 03:11:50,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:50,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589249978] [2020-11-28 03:11:50,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:50,729 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:50,734 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:50,736 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:50,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:50,738 INFO L82 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2020-11-28 03:11:50,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:50,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392096540] [2020-11-28 03:11:50,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:50,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:50,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:50,765 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:50,813 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:11:50,813 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:11:50,813 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:11:50,813 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:11:50,814 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:11:50,814 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:50,814 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:11:50,814 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:11:50,814 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2020-11-28 03:11:50,814 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:11:50,814 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:11:50,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:50,899 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:11:50,899 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:50,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:11:50,903 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:11:50,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:11:50,943 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:51,093 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:11:51,095 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:11:51,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:11:51,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:11:51,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:11:51,095 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:11:51,095 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:51,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:11:51,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:11:51,095 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2020-11-28 03:11:51,095 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:11:51,095 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:11:51,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:51,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:51,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:51,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:11:51,242 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:11:51,242 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:51,253 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 [2020-11-28 03:11:51,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:11:51,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:11:51,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:11:51,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:11:51,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:11:51,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:11:51,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:11:51,258 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:11:51,263 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-28 03:11:51,263 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea14df8d-6f84-48c4-ae8e-71fa21253c26/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:11:51,265 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:11:51,266 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:11:51,266 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:11:51,266 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 [] Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:11:51,301 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:11:51,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:51,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:11:51,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:51,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:11:51,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:11:51,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 03:11:51,345 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:11:51,345 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-11-28 03:11:51,358 INFO L75 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. [2020-11-28 03:11:51,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:11:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:11:51,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-28 03:11:51,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-28 03:11:51,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:51,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 03:11:51,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:51,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2020-11-28 03:11:51,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:11:51,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-11-28 03:11:51,360 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:11:51,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-11-28 03:11:51,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:11:51,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:11:51,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:11:51,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:11:51,361 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:11:51,361 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:11:51,361 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:11:51,361 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:11:51,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:11:51,361 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:11:51,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:11:51,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:11:51 BoogieIcfgContainer [2020-11-28 03:11:51,367 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:11:51,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:51,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:51,368 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:51,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:47" (3/4) ... [2020-11-28 03:11:51,371 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:11:51,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:51,374 INFO L168 Benchmark]: Toolchain (without parser) took 4641.29 ms. Allocated memory was 75.5 MB in the beginning and 117.4 MB in the end (delta: 41.9 MB). Free memory was 42.6 MB in the beginning and 76.7 MB in the end (delta: -34.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:51,374 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory was 50.9 MB in the beginning and 50.9 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:51,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.19 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 42.5 MB in the beginning and 76.3 MB in the end (delta: -33.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:51,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.70 ms. Allocated memory is still 96.5 MB. Free memory was 76.3 MB in the beginning and 75.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:51,376 INFO L168 Benchmark]: Boogie Preprocessor took 25.47 ms. Allocated memory is still 96.5 MB. Free memory was 75.2 MB in the beginning and 74.3 MB in the end (delta: 875.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:51,377 INFO L168 Benchmark]: RCFGBuilder took 265.66 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 65.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:51,378 INFO L168 Benchmark]: BuchiAutomizer took 3947.28 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.6 MB in the beginning and 76.7 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:51,378 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 117.4 MB. Free memory is still 76.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:51,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory was 50.9 MB in the beginning and 50.9 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 311.19 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 42.5 MB in the beginning and 76.3 MB in the end (delta: -33.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.70 ms. Allocated memory is still 96.5 MB. Free memory was 76.3 MB in the beginning and 75.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.47 ms. Allocated memory is still 96.5 MB. Free memory was 75.2 MB in the beginning and 74.3 MB in the end (delta: 875.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 265.66 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 65.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3947.28 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.6 MB in the beginning and 76.7 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.13 ms. Allocated memory is still 117.4 MB. Free memory is still 76.7 MB. There was no memory consumed. Max. memory is 16.1 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 3.8s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.2s. 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 ax182 hnf99 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: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...