./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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 32bit --witnessprinter.graph.data.programhash ac73664c6b6c540fa41a6c75f0a1d02ae5fcc2e0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:24:26,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:24:26,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:24:26,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:24:26,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:24:26,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:24:26,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:24:26,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:24:26,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:24:26,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:24:26,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:24:26,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:24:26,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:24:26,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:24:26,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:24:26,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:24:26,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:24:26,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:24:26,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:24:26,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:24:26,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:24:26,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:24:26,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:24:26,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:24:26,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:24:26,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:24:26,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:24:26,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:24:26,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:24:26,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:24:26,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:24:26,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:24:26,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:24:26,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:24:26,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:24:26,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:24:26,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:24:26,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:24:26,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:24:26,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:24:26,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:24:26,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:24:26,567 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:24:26,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:24:26,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:24:26,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:24:26,569 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:24:26,570 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:24:26,570 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:24:26,570 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:24:26,570 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:24:26,571 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:24:26,571 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:24:26,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:24:26,572 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:24:26,572 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:24:26,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:24:26,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:24:26,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:24:26,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:24:26,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:24:26,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:24:26,574 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:24:26,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:24:26,574 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:24:26,574 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:24:26,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:24:26,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:24:26,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:24:26,575 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:24:26,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:24:26,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:24:26,576 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:24:26,577 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:24:26,577 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_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac73664c6b6c540fa41a6c75f0a1d02ae5fcc2e0 [2019-11-19 22:24:26,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:24:26,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:24:26,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:24:26,740 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:24:26,741 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:24:26,741 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/../../sv-benchmarks/c/loops/trex01-2.i [2019-11-19 22:24:26,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/data/30eedc3fe/9cc2e1339936414cab5155deb0b9fe7e/FLAG5b175c746 [2019-11-19 22:24:27,218 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:24:27,220 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/sv-benchmarks/c/loops/trex01-2.i [2019-11-19 22:24:27,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/data/30eedc3fe/9cc2e1339936414cab5155deb0b9fe7e/FLAG5b175c746 [2019-11-19 22:24:27,245 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/data/30eedc3fe/9cc2e1339936414cab5155deb0b9fe7e [2019-11-19 22:24:27,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:24:27,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:24:27,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:24:27,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:24:27,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:24:27,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca74e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27, skipping insertion in model container [2019-11-19 22:24:27,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,266 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:24:27,285 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:24:27,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:24:27,436 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:24:27,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:24:27,532 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:24:27,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27 WrapperNode [2019-11-19 22:24:27,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:24:27,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:24:27,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:24:27,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:24:27,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:24:27,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:24:27,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:24:27,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:24:27,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... [2019-11-19 22:24:27,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:24:27,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:24:27,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:24:27,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:24:27,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:27,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:24:27,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:24:28,083 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:24:28,083 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-19 22:24:28,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:24:28 BoogieIcfgContainer [2019-11-19 22:24:28,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:24:28,085 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:24:28,085 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:24:28,088 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:24:28,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:24:28,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:24:27" (1/3) ... [2019-11-19 22:24:28,090 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@437ec382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:24:28, skipping insertion in model container [2019-11-19 22:24:28,091 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:24:28,091 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:24:27" (2/3) ... [2019-11-19 22:24:28,091 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@437ec382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:24:28, skipping insertion in model container [2019-11-19 22:24:28,091 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:24:28,091 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:24:28" (3/3) ... [2019-11-19 22:24:28,093 INFO L371 chiAutomizerObserver]: Analyzing ICFG trex01-2.i [2019-11-19 22:24:28,129 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:24:28,129 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:24:28,129 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:24:28,129 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:24:28,129 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:24:28,130 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:24:28,130 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:24:28,130 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:24:28,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2019-11-19 22:24:28,167 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-19 22:24:28,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:28,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:28,174 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 22:24:28,174 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 22:24:28,174 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:24:28,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2019-11-19 22:24:28,177 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-19 22:24:28,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:28,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:28,178 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 22:24:28,178 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 22:24:28,185 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 15#L36true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 28#L13true assume !!(f_~k~0 <= 1073741823); 13#L16-2true [2019-11-19 22:24:28,186 INFO L796 eck$LassoCheckResult]: Loop: 13#L16-2true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 13#L16-2true [2019-11-19 22:24:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:28,191 INFO L82 PathProgramCache]: Analyzing trace with hash 30886, now seen corresponding path program 1 times [2019-11-19 22:24:28,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:28,200 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453747841] [2019-11-19 22:24:28,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:28,286 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:28,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:28,287 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-19 22:24:28,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:28,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952245525] [2019-11-19 22:24:28,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:28,295 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:28,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:28,296 INFO L82 PathProgramCache]: Analyzing trace with hash 957485, now seen corresponding path program 1 times [2019-11-19 22:24:28,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:28,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470971974] [2019-11-19 22:24:28,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:28,312 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:28,417 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:28,417 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:28,417 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:28,417 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:28,418 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:28,418 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,418 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:28,418 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:28,418 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration1_Lasso [2019-11-19 22:24:28,418 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:28,419 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:28,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:28,726 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:28,726 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:28,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,742 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,749 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:28,773 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,773 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:28,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,786 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,790 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,790 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:28,802 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,802 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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 [2019-11-19 22:24:28,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:28,814 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,820 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:28,825 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,826 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:28,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,847 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-152} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:28,857 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,857 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:28,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:28,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:28,870 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:28,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:28,887 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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 [2019-11-19 22:24:28,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:28,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:41,010 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-11-19 22:24:41,016 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:41,017 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:41,017 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:41,017 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:41,017 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:24:41,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:41,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:41,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:41,018 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration1_Lasso [2019-11-19 22:24:41,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:41,018 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:41,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,237 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:41,241 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:41,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:41,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:41,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:41,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:41,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:41,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:41,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:41,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:41,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:41,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:41,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:41,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:41,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:41,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:41,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:41,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:41,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:41,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:41,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:41,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:41,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:41,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:41,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:41,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:41,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:41,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:41,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:41,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:41,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:41,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:41,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:41,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:41,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:41,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:41,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:41,340 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:41,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:41,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:41,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:41,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:41,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:41,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:41,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:41,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:41,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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 [2019-11-19 22:24:41,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:41,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:41,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:41,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:41,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:41,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:41,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:24:41,391 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:41,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:41,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:41,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:41,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:41,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:41,410 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:41,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:24:41,421 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:24:41,458 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-19 22:24:41,458 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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 [2019-11-19 22:24:41,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:24:41,495 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2019-11-19 22:24:41,495 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:24:41,496 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0) = -2*ULTIMATE.start_f_~z~0 + 2147483645 Supporting invariants [-1*ULTIMATE.start_f_~k~0 + 1073741823 >= 0, 1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2019-11-19 22:24:41,508 INFO L297 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2019-11-19 22:24:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:41,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:24:41,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:41,604 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:24:41,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:24:41,620 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-11-19 22:24:41,622 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states. Second operand 3 states. [2019-11-19 22:24:41,727 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states.. Second operand 3 states. Result 84 states and 128 transitions. Complement of second has 7 states. [2019-11-19 22:24:41,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:24:41,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:24:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2019-11-19 22:24:41,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-19 22:24:41,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:41,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-19 22:24:41,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:41,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-19 22:24:41,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:41,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 128 transitions. [2019-11-19 22:24:41,747 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2019-11-19 22:24:41,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 29 states and 37 transitions. [2019-11-19 22:24:41,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-11-19 22:24:41,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-11-19 22:24:41,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2019-11-19 22:24:41,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:24:41,754 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2019-11-19 22:24:41,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2019-11-19 22:24:41,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2019-11-19 22:24:41,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-19 22:24:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2019-11-19 22:24:41,775 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2019-11-19 22:24:41,775 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2019-11-19 22:24:41,775 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:24:41,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2019-11-19 22:24:41,776 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-19 22:24:41,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:41,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:41,777 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 22:24:41,777 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 22:24:41,777 INFO L794 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 177#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 179#L13-1 assume !!(f_~k~0 <= 1073741823); 173#L16-6 [2019-11-19 22:24:41,777 INFO L796 eck$LassoCheckResult]: Loop: 173#L16-6 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 173#L16-6 [2019-11-19 22:24:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:41,778 INFO L82 PathProgramCache]: Analyzing trace with hash 32998, now seen corresponding path program 1 times [2019-11-19 22:24:41,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:41,778 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674367539] [2019-11-19 22:24:41,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:41,787 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:41,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:41,788 INFO L82 PathProgramCache]: Analyzing trace with hash 116, now seen corresponding path program 1 times [2019-11-19 22:24:41,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:41,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796598531] [2019-11-19 22:24:41,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:41,793 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:41,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:41,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1023023, now seen corresponding path program 1 times [2019-11-19 22:24:41,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:41,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943738581] [2019-11-19 22:24:41,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:41,805 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:41,845 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:41,845 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:41,845 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:41,845 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:41,845 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:41,845 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:41,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:41,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:41,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration2_Lasso [2019-11-19 22:24:41,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:41,846 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:41,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:41,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:42,024 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:42,024 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:42,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:42,035 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:42,038 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:42,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:42,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:42,054 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:42,058 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:42,058 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:42,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:42,065 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:42,069 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:42,069 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:42,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:42,079 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:42,083 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:42,083 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:42,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:42,097 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:42,104 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:42,104 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:42,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:42,111 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:42,117 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:42,118 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:42,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:42,126 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:42,133 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:42,133 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~d=0, ULTIMATE.start_f_#in~d=0} Honda state: {ULTIMATE.start_f_~d=2, ULTIMATE.start_f_#in~d=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:42,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:42,143 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:42,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:42,158 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:54,308 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-11-19 22:24:54,317 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:54,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:54,317 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:54,317 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:54,318 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:24:54,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:54,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:54,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:54,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration2_Lasso [2019-11-19 22:24:54,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:54,318 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:54,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:54,529 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:54,530 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:54,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:54,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:54,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:54,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:54,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:54,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:54,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:54,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:54,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:54,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:54,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:54,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:54,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:54,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:54,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:54,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:54,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:54,566 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:54,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:54,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:54,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:54,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:54,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:54,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:54,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:54,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:54,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:54,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:54,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:54,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:54,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:54,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:54,599 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:54,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:24:54,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:54,625 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-19 22:24:54,625 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:54,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:54,633 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:24:54,633 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:24:54,633 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~k~0, ULTIMATE.start_f_~z~0) = 1*ULTIMATE.start_f_~k~0 - 1*ULTIMATE.start_f_~z~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2019-11-19 22:24:54,638 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 22:24:54,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:54,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 22:24:54,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:54,694 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:24:54,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:24:54,695 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-11-19 22:24:54,695 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-19 22:24:54,750 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 29 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 38 states and 49 transitions. Complement of second has 6 states. [2019-11-19 22:24:54,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:24:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:24:54,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2019-11-19 22:24:54,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-19 22:24:54,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:54,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-19 22:24:54,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:54,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-19 22:24:54,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:54,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2019-11-19 22:24:54,755 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2019-11-19 22:24:54,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 30 states and 39 transitions. [2019-11-19 22:24:54,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-11-19 22:24:54,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-11-19 22:24:54,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2019-11-19 22:24:54,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:24:54,757 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2019-11-19 22:24:54,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2019-11-19 22:24:54,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2019-11-19 22:24:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-19 22:24:54,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-19 22:24:54,763 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-19 22:24:54,764 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-19 22:24:54,764 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:24:54,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2019-11-19 22:24:54,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 22:24:54,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:54,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:54,766 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:24:54,766 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:24:54,766 INFO L794 eck$LassoCheckResult]: Stem: 281#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 282#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 286#L13 assume !!(f_~k~0 <= 1073741823); 287#L16-2 assume !(f_~z~0 < f_~k~0); 288#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 289#L4 assume !(0 == __VERIFIER_assert_~cond); 285#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 274#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 275#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 280#L24-2 [2019-11-19 22:24:54,766 INFO L796 eck$LassoCheckResult]: Loop: 280#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 283#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 280#L24-2 [2019-11-19 22:24:54,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:54,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1466276473, now seen corresponding path program 1 times [2019-11-19 22:24:54,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:54,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869949706] [2019-11-19 22:24:54,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:54,793 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:54,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:54,797 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 1 times [2019-11-19 22:24:54,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:54,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158695777] [2019-11-19 22:24:54,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:54,805 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:54,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:54,805 INFO L82 PathProgramCache]: Analyzing trace with hash 342419296, now seen corresponding path program 1 times [2019-11-19 22:24:54,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:54,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302196710] [2019-11-19 22:24:54,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:54,825 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:54,988 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:54,989 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:54,989 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:54,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:54,989 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:54,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:54,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:54,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:54,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration3_Lasso [2019-11-19 22:24:54,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:54,990 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:54,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,212 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:55,212 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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) [2019-11-19 22:24:55,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:55,222 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/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 [2019-11-19 22:24:55,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:55,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:55,253 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:24:55,255 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:55,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:55,255 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:55,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:55,255 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:24:55,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:55,255 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:55,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:55,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration3_Lasso [2019-11-19 22:24:55,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:55,256 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:55,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,484 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:55,484 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:55,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:55,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:55,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:55,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:55,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:55,503 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:55,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:55,511 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:24:55,521 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-19 22:24:55,521 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:55,529 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:55,532 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:24:55,532 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:24:55,532 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2019-11-19 22:24:55,536 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 22:24:55,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:55,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:24:55,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:55,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:24:55,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:24:55,619 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:24:55,619 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-19 22:24:55,663 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 30 states and 39 transitions. Complement of second has 6 states. [2019-11-19 22:24:55,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:24:55,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:24:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2019-11-19 22:24:55,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-19 22:24:55,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:55,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 11 letters. Loop has 2 letters. [2019-11-19 22:24:55,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:55,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 4 letters. [2019-11-19 22:24:55,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:55,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2019-11-19 22:24:55,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 22:24:55,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 38 transitions. [2019-11-19 22:24:55,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-11-19 22:24:55,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2019-11-19 22:24:55,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2019-11-19 22:24:55,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:24:55,668 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-19 22:24:55,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2019-11-19 22:24:55,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-11-19 22:24:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-19 22:24:55,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2019-11-19 22:24:55,671 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2019-11-19 22:24:55,671 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2019-11-19 22:24:55,671 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 22:24:55,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2019-11-19 22:24:55,672 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 22:24:55,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:55,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:55,673 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:24:55,673 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:24:55,673 INFO L794 eck$LassoCheckResult]: Stem: 400#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 401#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 407#L13-1 assume !!(f_~k~0 <= 1073741823); 396#L16-6 assume !(f_~z~0 < f_~k~0); 391#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 392#L4-3 assume !(0 == __VERIFIER_assert_~cond); 395#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 387#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 388#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 389#L24-5 [2019-11-19 22:24:55,673 INFO L796 eck$LassoCheckResult]: Loop: 389#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 390#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 389#L24-5 [2019-11-19 22:24:55,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:55,674 INFO L82 PathProgramCache]: Analyzing trace with hash 925850489, now seen corresponding path program 1 times [2019-11-19 22:24:55,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:55,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127297458] [2019-11-19 22:24:55,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:55,689 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:55,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:55,689 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 1 times [2019-11-19 22:24:55,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:55,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695306284] [2019-11-19 22:24:55,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:55,696 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:55,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:55,697 INFO L82 PathProgramCache]: Analyzing trace with hash 684093600, now seen corresponding path program 1 times [2019-11-19 22:24:55,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:55,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122860929] [2019-11-19 22:24:55,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:55,721 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:55,895 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:55,895 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:55,895 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:55,895 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:55,895 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:55,895 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:55,895 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:55,895 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:55,895 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration4_Lasso [2019-11-19 22:24:55,895 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:55,895 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:55,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:55,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,066 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:56,066 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:56,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:56,074 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,078 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:56,078 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:56,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:56,093 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:56,093 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:56,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:56,104 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:56,104 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,109 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:56,109 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:56,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:56,129 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:24:56,130 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:56,131 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:56,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:56,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:56,131 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:24:56,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:56,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:56,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration4_Lasso [2019-11-19 22:24:56,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:56,132 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:56,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,354 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:56,354 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:56,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:56,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:56,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:56,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:56,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:56,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:56,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:56,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:56,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:56,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:56,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:56,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:56,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:56,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:56,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,384 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:56,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:56,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:56,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:56,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:56,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:56,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:56,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,404 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:56,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:56,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:56,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:56,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:56,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:56,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:24:56,428 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:56,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:56,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:56,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:56,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:56,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:56,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:56,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,453 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:24:56,465 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-19 22:24:56,465 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,472 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:24:56,474 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:24:56,474 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:24:56,474 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2019-11-19 22:24:56,477 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 22:24:56,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:56,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:24:56,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:56,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:24:56,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:24:56,540 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:24:56,541 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand 4 states. [2019-11-19 22:24:56,574 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 37 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 34 states and 45 transitions. Complement of second has 6 states. [2019-11-19 22:24:56,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:24:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:24:56,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2019-11-19 22:24:56,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-19 22:24:56,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:56,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 11 letters. Loop has 2 letters. [2019-11-19 22:24:56,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:56,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 4 letters. [2019-11-19 22:24:56,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:56,577 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 45 transitions. [2019-11-19 22:24:56,578 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 22:24:56,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 33 states and 44 transitions. [2019-11-19 22:24:56,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2019-11-19 22:24:56,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-11-19 22:24:56,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2019-11-19 22:24:56,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:24:56,580 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-11-19 22:24:56,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2019-11-19 22:24:56,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-11-19 22:24:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-19 22:24:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2019-11-19 22:24:56,583 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-11-19 22:24:56,583 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-11-19 22:24:56,583 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 22:24:56,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2019-11-19 22:24:56,584 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 22:24:56,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:56,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:56,584 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:24:56,584 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 22:24:56,585 INFO L794 eck$LassoCheckResult]: Stem: 531#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 532#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 540#L13 assume !!(f_~k~0 <= 1073741823); 541#L16-2 assume !(f_~z~0 < f_~k~0); 542#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 543#L4 assume !(0 == __VERIFIER_assert_~cond); 539#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 524#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 525#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 530#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 537#L24 assume 0 != f_~c~0 % 256; 544#L25 [2019-11-19 22:24:56,585 INFO L796 eck$LassoCheckResult]: Loop: 544#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 533#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 534#L24 assume 0 != f_~c~0 % 256; 544#L25 [2019-11-19 22:24:56,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:56,586 INFO L82 PathProgramCache]: Analyzing trace with hash 342419292, now seen corresponding path program 1 times [2019-11-19 22:24:56,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:56,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90984509] [2019-11-19 22:24:56,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:56,618 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:56,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:56,620 INFO L82 PathProgramCache]: Analyzing trace with hash 91200, now seen corresponding path program 1 times [2019-11-19 22:24:56,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:56,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481390537] [2019-11-19 22:24:56,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:56,629 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:56,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:56,630 INFO L82 PathProgramCache]: Analyzing trace with hash 465861381, now seen corresponding path program 1 times [2019-11-19 22:24:56,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:56,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114955929] [2019-11-19 22:24:56,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:56,650 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:56,686 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:56,686 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:56,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:56,686 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:56,686 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:56,686 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:56,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:56,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration5_Loop [2019-11-19 22:24:56,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:56,687 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:56,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:56,800 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:56,800 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:56,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:56,808 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:56,808 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Exception during sending of exit command (exit): Broken pipe Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:56,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Exception during sending of exit command (exit): Stream closed [2019-11-19 22:24:56,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:56,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=128, ULTIMATE.start_f_~y~0=128} Honda state: {ULTIMATE.start_f_#t~nondet4=128, ULTIMATE.start_f_~y~0=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:56,856 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:56,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:56,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:56,875 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-2}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=4}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:56,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:56,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:56,887 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:56,887 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-152, ULTIMATE.start_f_~c~0=-152} Honda state: {ULTIMATE.start_f_#t~nondet3=-152, ULTIMATE.start_f_~c~0=-152} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-11-19 22:24:57,058 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:57,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:57,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:57,059 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:57,059 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:57,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:57,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:57,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration5_Lasso [2019-11-19 22:24:57,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:57,059 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:57,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,337 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:57,337 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:57,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:57,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:57,348 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=42} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:57,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:57,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:57,354 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:57,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:57,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:57,390 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0, ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_#t~nondet4=98381, ULTIMATE.start_f_~y~0=77} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:57,394 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:57,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:57,410 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:24:57,411 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:57,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:57,411 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:57,411 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:57,411 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:24:57,411 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,411 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:57,412 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:57,412 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration5_Lasso [2019-11-19 22:24:57,412 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:57,412 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:57,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,641 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:57,641 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:57,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:57,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:57,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:57,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:57,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:57,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:57,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:57,677 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 Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:57,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:57,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:57,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:57,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:57,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:57,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:24:57,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:57,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:57,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:57,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:57,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:57,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:57,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:24:57,696 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:24:57,709 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-19 22:24:57,710 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:57,713 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,716 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:24:57,716 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:24:57,716 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2019-11-19 22:24:57,721 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 22:24:57,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:57,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:24:57,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:57,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:24:57,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:24:57,790 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-19 22:24:57,790 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 17 Second operand 5 states. [2019-11-19 22:24:57,836 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 42 states and 56 transitions. Complement of second has 7 states. [2019-11-19 22:24:57,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:24:57,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 22:24:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2019-11-19 22:24:57,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-19 22:24:57,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:57,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 22:24:57,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:57,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 6 letters. [2019-11-19 22:24:57,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:57,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2019-11-19 22:24:57,839 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-19 22:24:57,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 38 states and 51 transitions. [2019-11-19 22:24:57,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2019-11-19 22:24:57,840 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-11-19 22:24:57,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2019-11-19 22:24:57,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:24:57,840 INFO L688 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2019-11-19 22:24:57,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2019-11-19 22:24:57,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2019-11-19 22:24:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-19 22:24:57,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2019-11-19 22:24:57,843 INFO L711 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2019-11-19 22:24:57,843 INFO L591 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2019-11-19 22:24:57,843 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 22:24:57,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 50 transitions. [2019-11-19 22:24:57,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-19 22:24:57,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:57,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:57,844 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:24:57,844 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 22:24:57,844 INFO L794 eck$LassoCheckResult]: Stem: 682#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 683#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 688#L13-1 assume !!(f_~k~0 <= 1073741823); 678#L16-6 assume !(f_~z~0 < f_~k~0); 673#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 674#L4-3 assume !(0 == __VERIFIER_assert_~cond); 677#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 665#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 666#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 672#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 671#L24-3 assume 0 != f_~c~0 % 256; 680#L25-1 [2019-11-19 22:24:57,844 INFO L796 eck$LassoCheckResult]: Loop: 680#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 667#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 668#L24-3 assume 0 != f_~c~0 % 256; 680#L25-1 [2019-11-19 22:24:57,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:57,845 INFO L82 PathProgramCache]: Analyzing trace with hash 684093596, now seen corresponding path program 1 times [2019-11-19 22:24:57,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:57,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312459241] [2019-11-19 22:24:57,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:57,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:57,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:57,860 INFO L82 PathProgramCache]: Analyzing trace with hash 156738, now seen corresponding path program 1 times [2019-11-19 22:24:57,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:57,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637699170] [2019-11-19 22:24:57,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:57,867 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:57,868 INFO L82 PathProgramCache]: Analyzing trace with hash 212625863, now seen corresponding path program 1 times [2019-11-19 22:24:57,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:57,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963259367] [2019-11-19 22:24:57,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:57,885 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:57,916 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:57,916 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:57,916 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:57,916 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:57,916 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:57,916 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:57,916 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:57,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:57,917 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration6_Loop [2019-11-19 22:24:57,917 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:57,917 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:57,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:57,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,070 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:58,070 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:58,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:58,075 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,086 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:58,086 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-224, ULTIMATE.start_f_~c~0=-224} Honda state: {ULTIMATE.start_f_#t~nondet3=-224, ULTIMATE.start_f_~c~0=-224} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:58,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:58,093 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:58,094 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:58,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:58,113 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:58,113 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=64, ULTIMATE.start_f_~y~0=64} Honda state: {ULTIMATE.start_f_#t~nondet4=64, ULTIMATE.start_f_~y~0=64} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:58,123 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:58,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:58,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:58,140 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-2}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=4}] Lambdas: [1, 1, 1] Nus: [0, 0] [2019-11-19 22:24:58,256 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:58,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:58,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:58,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:58,257 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:58,257 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,257 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:58,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:58,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration6_Lasso [2019-11-19 22:24:58,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:58,257 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:58,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,460 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:58,460 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:58,464 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:58,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:58,478 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:24:58,479 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:58,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:58,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:58,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:58,480 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:24:58,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:58,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:58,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration6_Lasso [2019-11-19 22:24:58,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:58,480 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:58,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:58,685 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:58,685 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:58,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:58,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:58,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:58,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:58,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:58,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:24:58,697 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:24:58,702 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-19 22:24:58,702 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:58,704 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:24:58,706 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2019-11-19 22:24:58,706 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:24:58,706 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0, 1*ULTIMATE.start_f_~x~0 >= 0] [2019-11-19 22:24:58,710 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-19 22:24:58,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:58,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:24:58,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:58,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:24:58,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:24:58,768 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-19 22:24:58,768 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 20 Second operand 5 states. [2019-11-19 22:24:58,819 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 47 states and 63 transitions. Complement of second has 7 states. [2019-11-19 22:24:58,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:24:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 22:24:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2019-11-19 22:24:58,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-19 22:24:58,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:58,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 22:24:58,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:58,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 6 letters. [2019-11-19 22:24:58,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:58,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 63 transitions. [2019-11-19 22:24:58,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-19 22:24:58,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 43 states and 58 transitions. [2019-11-19 22:24:58,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2019-11-19 22:24:58,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-11-19 22:24:58,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 58 transitions. [2019-11-19 22:24:58,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:24:58,824 INFO L688 BuchiCegarLoop]: Abstraction has 43 states and 58 transitions. [2019-11-19 22:24:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 58 transitions. [2019-11-19 22:24:58,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2019-11-19 22:24:58,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-19 22:24:58,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2019-11-19 22:24:58,827 INFO L711 BuchiCegarLoop]: Abstraction has 42 states and 57 transitions. [2019-11-19 22:24:58,827 INFO L591 BuchiCegarLoop]: Abstraction has 42 states and 57 transitions. [2019-11-19 22:24:58,828 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-19 22:24:58,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 57 transitions. [2019-11-19 22:24:58,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-19 22:24:58,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:58,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:58,829 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:24:58,829 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:24:58,830 INFO L794 eck$LassoCheckResult]: Stem: 848#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 849#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 856#L13 assume !!(f_~k~0 <= 1073741823); 857#L16-2 assume !(f_~z~0 < f_~k~0); 858#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 859#L4 assume !(0 == __VERIFIER_assert_~cond); 855#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 839#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 840#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 844#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 866#L24 assume 0 != f_~c~0 % 256; 864#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 865#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 869#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 850#L24-2 [2019-11-19 22:24:58,830 INFO L796 eck$LassoCheckResult]: Loop: 850#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 851#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 850#L24-2 [2019-11-19 22:24:58,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:58,830 INFO L82 PathProgramCache]: Analyzing trace with hash 465861385, now seen corresponding path program 1 times [2019-11-19 22:24:58,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:58,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230926236] [2019-11-19 22:24:58,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:58,861 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:58,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:58,862 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 2 times [2019-11-19 22:24:58,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:58,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068166192] [2019-11-19 22:24:58,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:58,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:58,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:58,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1016194032, now seen corresponding path program 2 times [2019-11-19 22:24:58,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:58,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841035775] [2019-11-19 22:24:58,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:58,890 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:59,022 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-11-19 22:24:59,079 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:59,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:59,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:59,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:59,079 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:24:59,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,079 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:59,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:59,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration7_Lasso [2019-11-19 22:24:59,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:59,080 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:59,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,327 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:59,327 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:59,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:59,330 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,334 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:59,334 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=0, ULTIMATE.start___VERIFIER_assert_~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:59,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:59,349 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:24:59,349 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:24:59,359 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:24:59,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:24:59,375 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:24:59,376 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:24:59,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:24:59,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:24:59,377 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:24:59,377 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:24:59,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:24:59,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:24:59,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration7_Lasso [2019-11-19 22:24:59,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:24:59,377 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:24:59,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:24:59,595 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:24:59,595 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:59,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:59,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:24:59,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:59,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:59,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:24:59,634 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:59,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:59,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:59,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:24:59,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:59,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:59,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:59,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:59,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:59,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:59,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,677 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:59,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:59,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:59,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:59,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,686 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:59,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:59,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:59,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:59,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:59,703 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:24:59,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:59,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:24:59,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:24:59,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:24:59,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:24:59,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:24:59,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:24:59,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:24:59,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:24:59,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,727 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:24:59,740 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-19 22:24:59,741 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:24:59,745 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:24:59,747 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:24:59,747 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:24:59,747 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2019-11-19 22:24:59,750 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 22:24:59,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:59,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:24:59,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:24:59,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:24:59,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:24:59,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:24:59,795 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:24:59,795 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 57 transitions. cyclomatic complexity: 23 Second operand 4 states. [2019-11-19 22:24:59,825 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 57 transitions. cyclomatic complexity: 23. Second operand 4 states. Result 60 states and 79 transitions. Complement of second has 6 states. [2019-11-19 22:24:59,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:24:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:24:59,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2019-11-19 22:24:59,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-19 22:24:59,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:59,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-19 22:24:59,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:59,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-19 22:24:59,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:24:59,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 79 transitions. [2019-11-19 22:24:59,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-19 22:24:59,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 52 states and 69 transitions. [2019-11-19 22:24:59,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2019-11-19 22:24:59,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-11-19 22:24:59,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 69 transitions. [2019-11-19 22:24:59,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:24:59,829 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-11-19 22:24:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 69 transitions. [2019-11-19 22:24:59,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2019-11-19 22:24:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-19 22:24:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2019-11-19 22:24:59,833 INFO L711 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2019-11-19 22:24:59,833 INFO L591 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2019-11-19 22:24:59,833 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-19 22:24:59,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 67 transitions. [2019-11-19 22:24:59,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-19 22:24:59,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:24:59,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:24:59,835 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:24:59,835 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:24:59,835 INFO L794 eck$LassoCheckResult]: Stem: 1028#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1029#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1034#L13-1 assume !!(f_~k~0 <= 1073741823); 1024#L16-6 assume !(f_~z~0 < f_~k~0); 1019#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1020#L4-3 assume !(0 == __VERIFIER_assert_~cond); 1023#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1012#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1013#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1014#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1048#L24-3 assume 0 != f_~c~0 % 256; 1043#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1044#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1051#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1015#L24-5 [2019-11-19 22:24:59,835 INFO L796 eck$LassoCheckResult]: Loop: 1015#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1016#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1015#L24-5 [2019-11-19 22:24:59,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:59,835 INFO L82 PathProgramCache]: Analyzing trace with hash 212625867, now seen corresponding path program 1 times [2019-11-19 22:24:59,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:59,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87392461] [2019-11-19 22:24:59,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:59,850 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:59,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:59,851 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 2 times [2019-11-19 22:24:59,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:59,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874018456] [2019-11-19 22:24:59,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:59,855 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:24:59,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:24:59,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1824968078, now seen corresponding path program 2 times [2019-11-19 22:24:59,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:24:59,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667738693] [2019-11-19 22:24:59,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:24:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:24:59,871 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:00,034 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:00,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:00,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:00,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:00,035 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:25:00,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:00,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:00,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration8_Lasso [2019-11-19 22:25:00,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:00,035 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:00,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,269 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:00,269 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:00,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:00,275 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:00,275 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=-809472} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:25:00,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:00,279 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,285 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:00,285 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:00,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:00,301 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:00,301 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,305 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:00,305 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:00,308 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:00,308 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=0, ULTIMATE.start___VERIFIER_assert_~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:00,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:00,317 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:00,317 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:00,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:00,325 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:00,325 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:00,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:00,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:00,331 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:00,335 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:25:00,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:00,350 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:25:00,351 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:00,351 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:00,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:00,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:00,352 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:25:00,352 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,352 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:00,352 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:00,352 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration8_Lasso [2019-11-19 22:25:00,352 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:00,352 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:00,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:00,582 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:00,582 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:00,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:00,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:00,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:00,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:00,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:00,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:00,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:00,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:00,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:00,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:00,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:00,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:00,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:00,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:00,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:00,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:00,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:00,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:00,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:00,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:00,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:00,616 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:00,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:00,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:00,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:00,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:00,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:00,622 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:00,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:25:00,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:00,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:00,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:00,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:00,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:00,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:00,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:25:00,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:00,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:00,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:00,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:00,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:00,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:00,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:25:00,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:00,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:00,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:00,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:00,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:00,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:00,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,685 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:25:00,698 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-19 22:25:00,698 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:00,700 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:25:00,702 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:25:00,702 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:25:00,703 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2019-11-19 22:25:00,705 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 22:25:00,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:00,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:25:00,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:00,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:25:00,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:25:00,760 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:25:00,760 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 67 transitions. cyclomatic complexity: 27 Second operand 4 states. [2019-11-19 22:25:00,790 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 67 transitions. cyclomatic complexity: 27. Second operand 4 states. Result 68 states and 89 transitions. Complement of second has 6 states. [2019-11-19 22:25:00,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:25:00,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:25:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2019-11-19 22:25:00,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-19 22:25:00,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:00,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-19 22:25:00,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:00,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-19 22:25:00,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:00,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 89 transitions. [2019-11-19 22:25:00,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-19 22:25:00,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 60 states and 79 transitions. [2019-11-19 22:25:00,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2019-11-19 22:25:00,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-11-19 22:25:00,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2019-11-19 22:25:00,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:25:00,796 INFO L688 BuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2019-11-19 22:25:00,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2019-11-19 22:25:00,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2019-11-19 22:25:00,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-19 22:25:00,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2019-11-19 22:25:00,799 INFO L711 BuchiCegarLoop]: Abstraction has 58 states and 77 transitions. [2019-11-19 22:25:00,799 INFO L591 BuchiCegarLoop]: Abstraction has 58 states and 77 transitions. [2019-11-19 22:25:00,799 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-19 22:25:00,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 77 transitions. [2019-11-19 22:25:00,800 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-19 22:25:00,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:25:00,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:25:00,800 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:25:00,800 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:25:00,800 INFO L794 eck$LassoCheckResult]: Stem: 1229#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1230#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1237#L13 assume !!(f_~k~0 <= 1073741823); 1238#L16-2 assume !(f_~z~0 < f_~k~0); 1239#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1240#L4 assume !(0 == __VERIFIER_assert_~cond); 1236#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1219#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1220#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1228#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1232#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1259#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1258#L24 assume 0 != f_~c~0 % 256; 1255#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1254#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1250#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1251#L24-2 [2019-11-19 22:25:00,801 INFO L796 eck$LassoCheckResult]: Loop: 1251#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1253#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1251#L24-2 [2019-11-19 22:25:00,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:00,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1126180482, now seen corresponding path program 3 times [2019-11-19 22:25:00,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:00,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103876601] [2019-11-19 22:25:00,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:00,817 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:00,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:00,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 3 times [2019-11-19 22:25:00,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:00,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22029857] [2019-11-19 22:25:00,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:00,822 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:00,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:00,822 INFO L82 PathProgramCache]: Analyzing trace with hash -72313559, now seen corresponding path program 4 times [2019-11-19 22:25:00,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:00,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466634751] [2019-11-19 22:25:00,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:00,839 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:00,980 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-11-19 22:25:01,066 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:01,066 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:01,066 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:01,067 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:01,067 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:25:01,067 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,067 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:01,067 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:01,067 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration9_Lasso [2019-11-19 22:25:01,067 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:01,067 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:01,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,296 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:01,296 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:01,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:01,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:01,303 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=-809472} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:01,307 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:25:01,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:01,322 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:25:01,323 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:01,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:01,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:01,323 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:01,323 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:25:01,323 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,323 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:01,323 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:01,324 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration9_Lasso [2019-11-19 22:25:01,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:01,324 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:01,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:01,528 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:01,528 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:01,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:01,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:01,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:01,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:01,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:01,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:01,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:01,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:01,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:01,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:01,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:01,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:01,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:01,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:01,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:01,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:01,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:01,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:01,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:01,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:01,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:01,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:01,548 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:01,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:01,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:01,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:01,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:01,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:01,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:01,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:01,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:01,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:01,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:01,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:01,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:01,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:01,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:01,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:01,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:01,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:01,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:01,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:01,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:01,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:01,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:01,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,578 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 [2019-11-19 22:25:01,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:01,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:01,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:01,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:01,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:01,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:01,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:01,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:01,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:01,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:01,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:01,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:01,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:01,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:01,598 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:25:01,609 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-19 22:25:01,609 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:01,611 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:25:01,615 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:25:01,615 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:25:01,615 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [-1*ULTIMATE.start_f_~x~0 + 999999*ULTIMATE.start_f_~d >= 0] [2019-11-19 22:25:01,618 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 22:25:01,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:01,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:25:01,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:01,680 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:25:01,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:01,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:25:01,694 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2019-11-19 22:25:01,694 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 6 states. [2019-11-19 22:25:01,759 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31. Second operand 6 states. Result 64 states and 84 transitions. Complement of second has 9 states. [2019-11-19 22:25:01,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-19 22:25:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 22:25:01,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 38 transitions. [2019-11-19 22:25:01,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 38 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-19 22:25:01,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:01,760 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:25:01,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:01,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:25:01,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:01,837 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:25:01,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:25:01,851 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2019-11-19 22:25:01,851 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 6 states. [2019-11-19 22:25:01,961 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31. Second operand 6 states. Result 64 states and 84 transitions. Complement of second has 9 states. [2019-11-19 22:25:01,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-19 22:25:01,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 22:25:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 38 transitions. [2019-11-19 22:25:01,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 38 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-19 22:25:01,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:01,962 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:25:01,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:01,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:25:01,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:02,022 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:25:02,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:25:02,036 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2019-11-19 22:25:02,036 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 6 states. [2019-11-19 22:25:02,120 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31. Second operand 6 states. Result 65 states and 86 transitions. Complement of second has 8 states. [2019-11-19 22:25:02,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-19 22:25:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 22:25:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2019-11-19 22:25:02,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-19 22:25:02,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:02,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 18 letters. Loop has 2 letters. [2019-11-19 22:25:02,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:02,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 16 letters. Loop has 4 letters. [2019-11-19 22:25:02,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:02,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 86 transitions. [2019-11-19 22:25:02,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:25:02,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 30 states and 39 transitions. [2019-11-19 22:25:02,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-19 22:25:02,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-19 22:25:02,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2019-11-19 22:25:02,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:25:02,123 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2019-11-19 22:25:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2019-11-19 22:25:02,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-19 22:25:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-19 22:25:02,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2019-11-19 22:25:02,125 INFO L711 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2019-11-19 22:25:02,125 INFO L591 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2019-11-19 22:25:02,125 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-19 22:25:02,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2019-11-19 22:25:02,126 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:25:02,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:25:02,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:25:02,126 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:25:02,126 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:25:02,127 INFO L794 eck$LassoCheckResult]: Stem: 1719#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1720#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1722#L13-1 assume !!(f_~k~0 <= 1073741823); 1712#L16-6 assume !(f_~z~0 < f_~k~0); 1713#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1721#L4-3 assume !(0 == __VERIFIER_assert_~cond); 1710#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1711#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1723#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1726#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1727#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1739#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1738#L24-3 assume 0 != f_~c~0 % 256; 1736#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1735#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1733#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1732#L24-5 [2019-11-19 22:25:02,127 INFO L796 eck$LassoCheckResult]: Loop: 1732#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1731#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1732#L24-5 [2019-11-19 22:25:02,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:02,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1714981628, now seen corresponding path program 3 times [2019-11-19 22:25:02,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:02,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274476191] [2019-11-19 22:25:02,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:02,144 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:02,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:02,144 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 3 times [2019-11-19 22:25:02,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:02,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860084866] [2019-11-19 22:25:02,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:02,149 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:02,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:02,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1170101099, now seen corresponding path program 4 times [2019-11-19 22:25:02,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:02,149 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944079293] [2019-11-19 22:25:02,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:02,165 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:02,326 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-11-19 22:25:02,438 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:02,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:02,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:02,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:02,439 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:25:02,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:02,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:02,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration10_Lasso [2019-11-19 22:25:02,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:02,439 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:02,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,642 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:02,642 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:02,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:02,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:02,652 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:02,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:02,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:02,659 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=-809472} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:02,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:25:02,665 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:25:02,665 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:25:02,670 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:25:02,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:25:02,688 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,699 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:25:02,700 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:02,700 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:02,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:02,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:02,700 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:25:02,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:02,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:02,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration10_Lasso [2019-11-19 22:25:02,701 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:02,701 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:02,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:02,895 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:02,895 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:02,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:02,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:02,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:02,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:02,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:02,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:02,909 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:25:02,918 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-19 22:25:02,918 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fc3c557-5237-4c37-8d28-cfaa7af5be7c/bin/uautomizer/z3 Starting monitored process 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:02,921 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:25:02,923 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 22:25:02,923 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:25:02,923 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2019-11-19 22:25:02,926 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-19 22:25:02,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:02,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:25:02,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:02,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:25:02,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:25:02,983 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:25:02,984 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-11-19 22:25:03,010 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 38 states and 47 transitions. Complement of second has 6 states. [2019-11-19 22:25:03,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:25:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:25:03,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-11-19 22:25:03,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-19 22:25:03,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:03,012 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:25:03,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:03,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:25:03,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:03,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:25:03,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:25:03,058 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:25:03,058 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-11-19 22:25:03,091 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 38 states and 47 transitions. Complement of second has 6 states. [2019-11-19 22:25:03,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:25:03,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:25:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-11-19 22:25:03,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-19 22:25:03,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:03,092 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:25:03,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:03,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:25:03,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:03,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:25:03,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:25:03,148 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:25:03,148 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-11-19 22:25:03,168 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 41 states and 52 transitions. Complement of second has 5 states. [2019-11-19 22:25:03,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:25:03,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:25:03,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-19 22:25:03,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-19 22:25:03,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:03,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 18 letters. Loop has 2 letters. [2019-11-19 22:25:03,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:03,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2019-11-19 22:25:03,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:03,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 52 transitions. [2019-11-19 22:25:03,170 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:25:03,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2019-11-19 22:25:03,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 22:25:03,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 22:25:03,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 22:25:03,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:25:03,171 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:25:03,171 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:25:03,171 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:25:03,171 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-19 22:25:03,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:25:03,171 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:25:03,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 22:25:03,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:25:03 BoogieIcfgContainer [2019-11-19 22:25:03,176 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:25:03,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:25:03,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:25:03,176 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:25:03,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:24:28" (3/4) ... [2019-11-19 22:25:03,179 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:25:03,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:25:03,180 INFO L168 Benchmark]: Toolchain (without parser) took 35930.54 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 343.9 MB). Free memory was 944.8 MB in the beginning and 884.1 MB in the end (delta: 60.6 MB). Peak memory consumption was 404.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:03,181 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:25:03,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:03,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.32 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. [2019-11-19 22:25:03,182 INFO L168 Benchmark]: Boogie Preprocessor took 20.42 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. [2019-11-19 22:25:03,182 INFO L168 Benchmark]: RCFGBuilder took 493.76 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:03,182 INFO L168 Benchmark]: BuchiAutomizer took 35090.77 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 1.1 GB in the beginning and 884.1 MB in the end (delta: 196.6 MB). Peak memory consumption was 425.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:03,183 INFO L168 Benchmark]: Witness Printer took 3.30 ms. Allocated memory is still 1.4 GB. Free memory is still 884.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:25:03,184 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.32 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 20.42 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 493.76 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35090.77 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 1.1 GB in the beginning and 884.1 MB in the end (delta: 196.6 MB). Peak memory consumption was 425.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.30 ms. Allocated memory is still 1.4 GB. Free memory is still 884.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -2 * z + 2147483645 and consists of 5 locations. One deterministic module has affine ranking function k + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + 1 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.0s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 33.1s. Construction of modules took 0.2s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 20 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 58 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 310 SDtfs, 440 SDslu, 157 SDs, 0 SdLazy, 212 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital63 mio100 ax100 hnf97 lsp44 ukn100 mio100 lsp100 div284 bol100 ite100 ukn100 eq148 hnf49 smp90 dnf100 smp100 tf101 neg98 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 41 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 25.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...