./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/aaron3-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/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 b11f086006b59545dfe302b4d0afe0208312f571 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:33:11,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:33:11,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:33:11,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:33:11,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:33:11,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:33:11,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:33:11,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:33:11,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:33:11,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:33:11,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:33:11,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:33:11,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:33:11,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:33:11,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:33:11,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:33:11,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:33:11,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:33:11,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:33:11,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:33:11,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:33:11,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:33:11,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:33:11,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:33:11,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:33:11,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:33:11,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:33:11,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:33:11,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:33:11,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:33:11,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:33:11,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:33:11,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:33:11,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:33:11,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:33:11,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:33:11,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:33:11,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:33:11,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:33:11,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:33:11,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:33:11,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 11:33:11,169 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:33:11,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:33:11,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:33:11,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:33:11,170 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:33:11,170 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 11:33:11,170 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 11:33:11,170 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 11:33:11,170 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 11:33:11,170 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 11:33:11,170 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 11:33:11,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:33:11,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:33:11,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:33:11,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:33:11,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 11:33:11,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 11:33:11,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 11:33:11,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:33:11,172 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 11:33:11,172 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:33:11,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 11:33:11,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:33:11,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:33:11,172 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 11:33:11,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:33:11,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:33:11,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:33:11,172 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 11:33:11,173 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 11:33:11,173 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/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 -> b11f086006b59545dfe302b4d0afe0208312f571 [2019-12-07 11:33:11,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:33:11,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:33:11,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:33:11,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:33:11,288 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:33:11,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/aaron3-1.c [2019-12-07 11:33:11,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/data/4e77964f4/5e04a273561843adb3385c1accece9d6/FLAG251a85042 [2019-12-07 11:33:11,647 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:33:11,648 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/sv-benchmarks/c/termination-crafted/aaron3-1.c [2019-12-07 11:33:11,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/data/4e77964f4/5e04a273561843adb3385c1accece9d6/FLAG251a85042 [2019-12-07 11:33:12,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/data/4e77964f4/5e04a273561843adb3385c1accece9d6 [2019-12-07 11:33:12,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:33:12,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:33:12,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:33:12,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:33:12,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:33:12,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d3b949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12, skipping insertion in model container [2019-12-07 11:33:12,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:33:12,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:33:12,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:33:12,221 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:33:12,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:33:12,275 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:33:12,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12 WrapperNode [2019-12-07 11:33:12,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:33:12,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:33:12,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:33:12,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:33:12,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:33:12,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:33:12,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:33:12,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:33:12,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... [2019-12-07 11:33:12,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:33:12,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:33:12,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:33:12,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:33:12,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:33:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:33:12,453 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:33:12,454 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 11:33:12,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:33:12 BoogieIcfgContainer [2019-12-07 11:33:12,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:33:12,455 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 11:33:12,455 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 11:33:12,457 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 11:33:12,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:33:12,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 11:33:12" (1/3) ... [2019-12-07 11:33:12,459 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@766a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:33:12, skipping insertion in model container [2019-12-07 11:33:12,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:33:12,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:33:12" (2/3) ... [2019-12-07 11:33:12,459 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@766a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 11:33:12, skipping insertion in model container [2019-12-07 11:33:12,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 11:33:12,460 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:33:12" (3/3) ... [2019-12-07 11:33:12,461 INFO L371 chiAutomizerObserver]: Analyzing ICFG aaron3-1.c [2019-12-07 11:33:12,495 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 11:33:12,495 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 11:33:12,495 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 11:33:12,496 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:33:12,496 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:33:12,496 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 11:33:12,496 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:33:12,496 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 11:33:12,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-12-07 11:33:12,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 11:33:12,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:33:12,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:33:12,522 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 11:33:12,523 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 11:33:12,523 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 11:33:12,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-12-07 11:33:12,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 11:33:12,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:33:12,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:33:12,524 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 11:33:12,524 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 11:33:12,529 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L22true assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 7#L23true assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 9#L24true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 12#L25true assume !!(main_~y~0 <= 1073741823); 13#L27-2true [2019-12-07 11:33:12,529 INFO L796 eck$LassoCheckResult]: Loop: 13#L27-2true assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 5#L27true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 13#L27-2true [2019-12-07 11:33:12,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:12,533 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2019-12-07 11:33:12,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:12,539 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899070955] [2019-12-07 11:33:12,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:12,617 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:12,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:12,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2019-12-07 11:33:12,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:12,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890678807] [2019-12-07 11:33:12,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:12,626 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:12,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:12,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221836, now seen corresponding path program 1 times [2019-12-07 11:33:12,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:12,628 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821882402] [2019-12-07 11:33:12,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:12,641 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:12,673 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:33:12,673 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:33:12,673 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:33:12,673 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:33:12,673 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 11:33:12,674 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:12,674 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:33:12,674 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:33:12,674 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2019-12-07 11:33:12,674 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:33:12,674 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:33:12,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:12,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:12,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:12,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:12,769 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:33:12,770 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:12,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:12,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:12,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 11:33:12,784 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_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:12,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:12,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:12,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 11:33:12,792 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_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:12,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:12,798 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:12,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 11:33:12,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:13,056 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 11:33:13,057 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:33:13,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:33:13,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:33:13,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:33:13,058 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 11:33:13,058 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,058 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:33:13,058 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:33:13,058 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2019-12-07 11:33:13,058 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:33:13,058 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:33:13,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:13,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:13,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:13,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:13,110 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:33:13,114 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:13,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:13,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:13,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:13,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:13,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:33:13,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:33:13,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:13,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:13,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:13,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:13,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:13,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:33:13,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:33:13,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:13,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:13,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:33:13,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:13,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:13,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:13,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:33:13,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:33:13,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 11:33:13,152 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 11:33:13,152 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,156 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 11:33:13,156 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 11:33:13,156 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 11:33:13,156 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2019-12-07 11:33:13,159 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 11:33:13,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:13,189 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:33:13,190 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:13,199 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:33:13,199 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:13,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:33:13,218 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 11:33:13,219 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2019-12-07 11:33:13,254 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 31 states and 42 transitions. Complement of second has 8 states. [2019-12-07 11:33:13,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 11:33:13,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 11:33:13,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-12-07 11:33:13,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 11:33:13,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:13,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 11:33:13,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:13,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 11:33:13,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:13,259 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2019-12-07 11:33:13,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 11:33:13,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 15 transitions. [2019-12-07 11:33:13,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-12-07 11:33:13,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 11:33:13,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2019-12-07 11:33:13,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 11:33:13,265 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 11:33:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2019-12-07 11:33:13,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 11:33:13,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 11:33:13,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-12-07 11:33:13,283 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 11:33:13,283 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 11:33:13,283 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 11:33:13,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2019-12-07 11:33:13,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 11:33:13,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:33:13,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:33:13,284 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:33:13,284 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 11:33:13,284 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 99#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 100#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 101#L25 assume !!(main_~y~0 <= 1073741823); 103#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 96#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2019-12-07 11:33:13,285 INFO L796 eck$LassoCheckResult]: Loop: 92#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 93#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 102#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2019-12-07 11:33:13,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:13,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2019-12-07 11:33:13,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:13,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045124055] [2019-12-07 11:33:13,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:13,297 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:13,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:13,298 INFO L82 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2019-12-07 11:33:13,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:13,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185434426] [2019-12-07 11:33:13,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:13,304 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:13,304 INFO L82 PathProgramCache]: Analyzing trace with hash -312117156, now seen corresponding path program 1 times [2019-12-07 11:33:13,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:13,305 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797545827] [2019-12-07 11:33:13,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:13,321 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:13,346 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:33:13,346 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:33:13,346 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:33:13,346 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:33:13,346 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 11:33:13,346 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,346 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:33:13,346 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:33:13,346 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2019-12-07 11:33:13,346 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:33:13,346 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:33:13,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:13,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:13,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:13,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:13,420 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:33:13,420 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:13,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:13,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 11:33:13,427 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_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:13,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:13,434 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 11:33:13,435 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=-5} Honda state: {ULTIMATE.start_main_#t~nondet4=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:13,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:13,441 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 11:33:13,442 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_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:13,445 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:13,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 11:33:13,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:15,470 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 11:33:15,471 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:33:15,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:33:15,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:33:15,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:33:15,471 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 11:33:15,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:33:15,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:33:15,472 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2019-12-07 11:33:15,472 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:33:15,472 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:33:15,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:15,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:15,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:15,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:15,555 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:33:15,556 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:15,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:15,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:15,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:15,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:15,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:33:15,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:33:15,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:15,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:15,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:33:15,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:15,571 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 11:33:15,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:15,572 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 11:33:15,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:33:15,574 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:15,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:15,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:15,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:15,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:15,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:33:15,582 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:33:15,584 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:15,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:15,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:33:15,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:15,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:15,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:15,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:33:15,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:33:15,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 11:33:15,598 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:15,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:15,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:15,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:15,603 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 11:33:15,606 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 11:33:15,606 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 11:33:15,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:15,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:15,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:33:15,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:15,616 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 11:33:15,617 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 11:33:15,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:33:15,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:33:15,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:15,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:15,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:15,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:15,631 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 11:33:15,633 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 11:33:15,634 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 11:33:15,638 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:15,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:15,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:33:15,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:15,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:15,645 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 11:33:15,647 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 11:33:15,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:33:15,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 11:33:15,656 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 11:33:15,656 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,659 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 11:33:15,659 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 11:33:15,659 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 11:33:15,660 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~tx~0 + 2*ULTIMATE.start_main_~z~0 + 2147483647 Supporting invariants [] [2019-12-07 11:33:15,662 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 11:33:15,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:15,681 INFO L264 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:33:15,681 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:15,686 WARN L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 11:33:15,687 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:15,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:33:15,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:33:15,766 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 11:33:15,766 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Exception during sending of exit command (exit): Broken pipe [2019-12-07 11:33:15,860 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 17 states and 22 transitions. Complement of second has 6 states. [2019-12-07 11:33:15,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 11:33:15,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 11:33:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2019-12-07 11:33:15,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2019-12-07 11:33:15,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:15,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2019-12-07 11:33:15,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:15,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 6 letters. [2019-12-07 11:33:15,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:15,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2019-12-07 11:33:15,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 11:33:15,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2019-12-07 11:33:15,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 11:33:15,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 11:33:15,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2019-12-07 11:33:15,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 11:33:15,864 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2019-12-07 11:33:15,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2019-12-07 11:33:15,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-12-07 11:33:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 11:33:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-12-07 11:33:15,865 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-12-07 11:33:15,865 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-12-07 11:33:15,865 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 11:33:15,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-12-07 11:33:15,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 11:33:15,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:33:15,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:33:15,866 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:33:15,866 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 11:33:15,866 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 184#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 188#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 189#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 190#L25 assume !!(main_~y~0 <= 1073741823); 192#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 193#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 179#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 181#L27-2 [2019-12-07 11:33:15,866 INFO L796 eck$LassoCheckResult]: Loop: 181#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 185#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 181#L27-2 [2019-12-07 11:33:15,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:15,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1295763161, now seen corresponding path program 2 times [2019-12-07 11:33:15,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:15,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709554806] [2019-12-07 11:33:15,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:15,878 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:15,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:15,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2019-12-07 11:33:15,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:15,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756290437] [2019-12-07 11:33:15,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:15,882 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:15,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:15,883 INFO L82 PathProgramCache]: Analyzing trace with hash -312117149, now seen corresponding path program 1 times [2019-12-07 11:33:15,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:15,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652849602] [2019-12-07 11:33:15,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:15,894 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:15,907 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:33:15,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:33:15,907 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:33:15,907 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:33:15,907 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 11:33:15,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,908 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:33:15,908 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:33:15,908 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2019-12-07 11:33:15,908 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:33:15,908 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:33:15,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:15,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:15,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:15,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:15,945 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:33:15,945 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:15,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:15,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 11:33:15,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:15,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:15,958 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 11:33:15,958 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:15,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:15,966 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 11:33:15,966 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:15,970 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:15,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 11:33:15,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:16,256 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 11:33:16,258 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:33:16,258 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:33:16,258 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:33:16,258 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:33:16,258 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 11:33:16,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,259 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:33:16,259 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:33:16,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2019-12-07 11:33:16,259 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:33:16,259 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:33:16,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,294 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:33:16,294 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:16,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:16,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:33:16,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:16,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:16,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:16,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:33:16,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:33:16,300 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:16,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:16,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:16,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:16,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:16,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 11:33:16,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 11:33:16,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:16,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:16,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:33:16,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:16,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:16,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:16,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:33:16,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:33:16,317 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 11:33:16,319 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 11:33:16,319 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 11:33:16,322 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 11:33:16,322 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 11:33:16,322 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-12-07 11:33:16,324 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 11:33:16,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:16,337 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:33:16,337 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:16,340 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:33:16,340 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:16,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:33:16,348 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 11:33:16,348 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 11:33:16,358 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 22 states and 29 transitions. Complement of second has 5 states. [2019-12-07 11:33:16,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 11:33:16,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 11:33:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-12-07 11:33:16,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2019-12-07 11:33:16,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:16,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2019-12-07 11:33:16,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:16,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2019-12-07 11:33:16,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:16,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2019-12-07 11:33:16,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 11:33:16,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2019-12-07 11:33:16,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 11:33:16,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 11:33:16,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2019-12-07 11:33:16,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 11:33:16,361 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-07 11:33:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2019-12-07 11:33:16,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 11:33:16,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 11:33:16,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-07 11:33:16,362 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-07 11:33:16,362 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-07 11:33:16,362 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 11:33:16,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2019-12-07 11:33:16,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 11:33:16,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 11:33:16,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 11:33:16,363 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2019-12-07 11:33:16,364 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 11:33:16,364 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 273#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 276#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 277#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 278#L25 assume !!(main_~y~0 <= 1073741823); 280#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 281#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 267#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 268#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 282#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 269#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 271#L27-2 [2019-12-07 11:33:16,364 INFO L796 eck$LassoCheckResult]: Loop: 271#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 274#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 271#L27-2 [2019-12-07 11:33:16,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:16,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1085697206, now seen corresponding path program 3 times [2019-12-07 11:33:16,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:16,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924166770] [2019-12-07 11:33:16,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:16,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:16,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:16,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 3 times [2019-12-07 11:33:16,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:16,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922277421] [2019-12-07 11:33:16,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:16,381 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:16,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:16,381 INFO L82 PathProgramCache]: Analyzing trace with hash 322038932, now seen corresponding path program 2 times [2019-12-07 11:33:16,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:33:16,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027037055] [2019-12-07 11:33:16,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:33:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:33:16,394 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:33:16,407 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:33:16,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:33:16,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:33:16,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:33:16,407 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 11:33:16,407 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,407 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:33:16,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:33:16,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2019-12-07 11:33:16,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:33:16,408 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:33:16,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,446 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:33:16,446 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 11:33:16,450 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 11:33:16,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 11:33:16,705 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 11:33:16,707 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 11:33:16,707 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 11:33:16,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 11:33:16,708 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 11:33:16,708 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 11:33:16,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 11:33:16,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 11:33:16,708 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2019-12-07 11:33:16,708 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 11:33:16,708 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 11:33:16,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 11:33:16,744 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 11:33:16,745 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 11:33:16,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 11:33:16,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 11:33:16,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 11:33:16,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 11:33:16,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 11:33:16,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 11:33:16,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 11:33:16,751 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 11:33:16,753 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 11:33:16,753 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6215f1b4-267d-41b6-97d6-89dec34f6062/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 11:33:16,755 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 11:33:16,755 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 11:33:16,755 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 11:33:16,756 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-12-07 11:33:16,757 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 11:33:16,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:16,771 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:33:16,771 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:16,774 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:33:16,774 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:33:16,788 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 11:33:16,788 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-12-07 11:33:16,796 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2019-12-07 11:33:16,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 11:33:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 11:33:16,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-12-07 11:33:16,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 11:33:16,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:16,797 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 11:33:16,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:16,809 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:33:16,810 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:16,812 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:33:16,813 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:16,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:33:16,819 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 11:33:16,819 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-12-07 11:33:16,826 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2019-12-07 11:33:16,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 11:33:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 11:33:16,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-12-07 11:33:16,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 11:33:16,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:16,827 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 11:33:16,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:33:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:16,839 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:33:16,840 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:33:16,843 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:33:16,843 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:33:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:33:16,849 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 11:33:16,849 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-12-07 11:33:16,859 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 23 states and 29 transitions. Complement of second has 4 states. [2019-12-07 11:33:16,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 11:33:16,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 11:33:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-12-07 11:33:16,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 11:33:16,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:16,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2019-12-07 11:33:16,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:16,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2019-12-07 11:33:16,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 11:33:16,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2019-12-07 11:33:16,861 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 11:33:16,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-12-07 11:33:16,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 11:33:16,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 11:33:16,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 11:33:16,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 11:33:16,861 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:33:16,861 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:33:16,861 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:33:16,861 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 11:33:16,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:33:16,862 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 11:33:16,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 11:33:16,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 11:33:16 BoogieIcfgContainer [2019-12-07 11:33:16,866 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 11:33:16,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:33:16,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:33:16,866 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:33:16,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:33:12" (3/4) ... [2019-12-07 11:33:16,869 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:33:16,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:33:16,870 INFO L168 Benchmark]: Toolchain (without parser) took 4774.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.7 MB in the beginning and 933.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 110.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:33:16,871 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:33:16,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:33:16,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:33:16,872 INFO L168 Benchmark]: Boogie Preprocessor took 12.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:33:16,872 INFO L168 Benchmark]: RCFGBuilder took 146.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:33:16,872 INFO L168 Benchmark]: BuchiAutomizer took 4410.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 933.5 MB in the end (delta: 142.6 MB). Peak memory consumption was 142.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:33:16,873 INFO L168 Benchmark]: Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 933.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:33:16,874 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 146.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4410.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 933.5 MB in the end (delta: 142.6 MB). Peak memory consumption was 142.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 933.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + -2 * y + 1 and consists of 5 locations. One deterministic module has 2-nested ranking function (if 2 * z > 0 then 1 else 0), (if 2 * z > 0 then 2 * z else 2 * tx + 2 * z + 2147483647) and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 60 SDslu, 8 SDs, 0 SdLazy, 39 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax159 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...