./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cf6b3a74fd4060a216a178ad3d11a901c2ac840d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:21:35,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:35,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:35,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:35,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:35,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:35,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:35,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:35,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:35,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:35,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:35,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:35,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:35,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:35,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:35,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:35,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:35,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:35,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:35,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:35,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:35,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:35,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:35,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:35,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:35,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:35,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:35,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:35,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:35,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:35,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:35,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:35,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:35,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:35,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:35,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:35,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:35,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:35,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:35,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:35,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:35,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:21:35,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:35,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:35,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:35,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:35,873 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:35,874 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:21:35,874 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:21:35,874 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:21:35,874 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:21:35,875 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:21:35,876 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:21:35,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:35,877 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:21:35,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:35,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:35,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:21:35,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:21:35,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:21:35,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:35,879 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:21:35,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:35,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:21:35,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:35,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:35,880 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:21:35,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:35,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:35,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:35,882 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:21:35,886 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:21:35,886 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf6b3a74fd4060a216a178ad3d11a901c2ac840d [2020-11-28 03:21:36,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:36,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:36,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:36,258 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:36,258 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:36,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2020-11-28 03:21:36,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/data/8c61b4481/0b70fb7976184c8298369b7a212e4f6a/FLAG748ec7cf8 [2020-11-28 03:21:36,929 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:36,930 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/sv-benchmarks/c/termination-restricted-15/b.09-no-inv_assume.c [2020-11-28 03:21:36,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/data/8c61b4481/0b70fb7976184c8298369b7a212e4f6a/FLAG748ec7cf8 [2020-11-28 03:21:37,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/data/8c61b4481/0b70fb7976184c8298369b7a212e4f6a [2020-11-28 03:21:37,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:37,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:37,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:37,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:37,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:37,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b427d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37, skipping insertion in model container [2020-11-28 03:21:37,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:37,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:37,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:37,521 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:37,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:37,556 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:37,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37 WrapperNode [2020-11-28 03:21:37,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:37,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:37,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:37,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:37,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:37,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:37,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:37,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:37,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:37,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:37,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:37,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:37,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:37,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:37,952 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:37,952 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:21:37,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:37 BoogieIcfgContainer [2020-11-28 03:21:37,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:37,959 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:21:37,959 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:21:37,963 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:21:37,964 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:37,965 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:21:37" (1/3) ... [2020-11-28 03:21:37,966 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ce4c767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:37, skipping insertion in model container [2020-11-28 03:21:37,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:37,966 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37" (2/3) ... [2020-11-28 03:21:37,967 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ce4c767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:37, skipping insertion in model container [2020-11-28 03:21:37,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:37,967 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:37" (3/3) ... [2020-11-28 03:21:37,969 INFO L373 chiAutomizerObserver]: Analyzing ICFG b.09-no-inv_assume.c [2020-11-28 03:21:38,026 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:21:38,026 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:21:38,026 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:21:38,027 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:38,027 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:38,027 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:21:38,027 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:38,027 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:21:38,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-28 03:21:38,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:38,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:38,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:38,071 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:21:38,071 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:38,071 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:21:38,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-28 03:21:38,073 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:38,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:38,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:38,073 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:21:38,074 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:38,082 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 7#L11true assume main_~x~0 > 0 && main_~y~0 > 0; 3#L12-2true [2020-11-28 03:21:38,083 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!!(0 == main_~x~0); 10#L13true assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 8#L13-2true main_~c~0 := 1 + main_~c~0; 3#L12-2true [2020-11-28 03:21:38,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:38,090 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-11-28 03:21:38,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:38,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270589021] [2020-11-28 03:21:38,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:38,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:38,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:38,204 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:38,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:38,207 INFO L82 PathProgramCache]: Analyzing trace with hash 42800, now seen corresponding path program 1 times [2020-11-28 03:21:38,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:38,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992605571] [2020-11-28 03:21:38,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:38,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:38,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:38,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:38,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:38,234 INFO L82 PathProgramCache]: Analyzing trace with hash 29684845, now seen corresponding path program 1 times [2020-11-28 03:21:38,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:38,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317363942] [2020-11-28 03:21:38,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:38,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:38,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:38,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:38,360 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:38,360 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:38,361 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:38,361 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:38,361 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:21:38,361 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:38,361 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:38,362 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:38,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2020-11-28 03:21:38,362 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:38,362 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:38,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:38,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:38,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:38,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:38,770 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:38,770 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:38,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:38,790 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 [2020-11-28 03:21:38,805 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:38,806 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:38,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:38,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:38,843 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:38,843 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:38,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:38,872 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:38,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:38,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:38,930 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:38,930 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:38,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:38,965 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:39,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:39,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:39,265 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:21:39,268 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:39,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:39,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:39,268 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:39,268 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:21:39,268 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:39,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:39,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:39,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration1_Loop [2020-11-28 03:21:39,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:39,269 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:39,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:39,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:39,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:39,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:39,456 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:39,462 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:39,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:39,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:39,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:39,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:39,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:39,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:39,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:39,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:39,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:39,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:39,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:39,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:39,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:39,587 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:39,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:39,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:21:39,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:39,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:39,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:39,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:39,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:39,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:39,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:39,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:39,663 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:21:39,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:39,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:39,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:39,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:39,732 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:21:39,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:39,737 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 03:21:39,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:39,744 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:21:39,750 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:21:39,750 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:39,756 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:21:39,756 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:21:39,756 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:21:39,757 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:39,805 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:21:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:39,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:21:39,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:39,898 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:21:39,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:39,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:39,983 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:21:39,984 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2020-11-28 03:21:40,071 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 29 states and 36 transitions. Complement of second has 5 states. [2020-11-28 03:21:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:21:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:21:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-11-28 03:21:40,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2020-11-28 03:21:40,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:40,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-28 03:21:40,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:40,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2020-11-28 03:21:40,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:40,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2020-11-28 03:21:40,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:40,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 12 states and 15 transitions. [2020-11-28 03:21:40,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-28 03:21:40,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:21:40,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-11-28 03:21:40,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:21:40,102 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-28 03:21:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-11-28 03:21:40,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2020-11-28 03:21:40,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:21:40,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-11-28 03:21:40,136 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 03:21:40,137 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 03:21:40,137 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:21:40,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-11-28 03:21:40,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:40,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:40,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:40,139 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 03:21:40,139 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:40,140 INFO L794 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 82#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 83#L12-2 assume !!!(0 == main_~x~0); 78#L13 [2020-11-28 03:21:40,140 INFO L796 eck$LassoCheckResult]: Loop: 78#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 84#L13-2 main_~c~0 := 1 + main_~c~0; 77#L12-2 assume !!!(0 == main_~x~0); 78#L13 [2020-11-28 03:21:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:40,141 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2020-11-28 03:21:40,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:40,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339500146] [2020-11-28 03:21:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:40,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:40,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:40,173 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:40,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:40,174 INFO L82 PathProgramCache]: Analyzing trace with hash 47722, now seen corresponding path program 1 times [2020-11-28 03:21:40,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:40,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305972148] [2020-11-28 03:21:40,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:40,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:40,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:40,202 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:40,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:40,203 INFO L82 PathProgramCache]: Analyzing trace with hash 920232130, now seen corresponding path program 1 times [2020-11-28 03:21:40,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:40,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304094270] [2020-11-28 03:21:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:40,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:40,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:40,245 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:40,294 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:40,294 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:40,295 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:40,295 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:40,295 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:21:40,295 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:40,295 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:40,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:40,296 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Loop [2020-11-28 03:21:40,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:40,296 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:40,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,500 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:40,500 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:40,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:40,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:40,512 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:40,513 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:40,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:40,567 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:40,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:40,623 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:40,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:40,746 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:40,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:40,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:40,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:40,804 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:40,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:40,836 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:40,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:40,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:40,883 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:40,883 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] [2020-11-28 03:21:40,982 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:40,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:40,982 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:40,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:40,982 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:21:40,982 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:40,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:40,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:40,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2020-11-28 03:21:40,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:40,983 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:40,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,210 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:41,210 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:21:41,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:41,223 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:41,230 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:41,230 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:41,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:41,281 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:41,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:41,286 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:41,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:41,347 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 [2020-11-28 03:21:41,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:41,366 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:41,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:41,425 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 [2020-11-28 03:21:41,434 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:41,434 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_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:41,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:41,463 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:21:41,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:41,494 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 [2020-11-28 03:21:41,512 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:41,512 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:41,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:41,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:41,544 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:41,544 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_4=1} Honda state: {v_rep~unnamed0~0~true_4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:41,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:41,572 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:41,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:41,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:41,808 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:21:41,810 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:41,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:41,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:41,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:41,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:21:41,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:41,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:41,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:41,811 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration2_Lasso [2020-11-28 03:21:41,811 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:41,811 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:41,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:42,038 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:42,039 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:21:42,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:42,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:42,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:42,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:42,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:42,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:42,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:42,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:42,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:42,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:42,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:42,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:42,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:42,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:42,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:42,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:42,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:42,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:42,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:42,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:42,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:42,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:42,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:42,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:42,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:42,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:42,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:42,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:42,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:42,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:42,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:42,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:42,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:42,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:42,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:42,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:42,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:42,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:42,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:42,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:42,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:42,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:42,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:42,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:42,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:42,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:42,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:42,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:42,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:42,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:42,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:42,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:42,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:42,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:42,316 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:21:42,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:42,337 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-28 03:21:42,337 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-28 03:21:42,367 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:21:42,407 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-28 03:21:42,407 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:42,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:42,419 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-11-28 03:21:42,420 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:21:42,420 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [2*ULTIMATE.start_main_~x~0 - 1 >= 0] [2020-11-28 03:21:42,473 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-28 03:21:42,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:21:42,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,544 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:21:42,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:42,567 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 [2020-11-28 03:21:42,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-28 03:21:42,636 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 16 states and 21 transitions. Complement of second has 5 states. [2020-11-28 03:21:42,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 0 non-accepting loop states 2 accepting loop states [2020-11-28 03:21:42,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:21:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-11-28 03:21:42,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 3 letters. Loop has 3 letters. [2020-11-28 03:21:42,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:42,639 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:21:42,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:21:42,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:42,701 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:21:42,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:42,723 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 [2020-11-28 03:21:42,724 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-28 03:21:42,849 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 21 states and 26 transitions. Complement of second has 6 states. [2020-11-28 03:21:42,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:21:42,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:21:42,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-11-28 03:21:42,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 3 letters. [2020-11-28 03:21:42,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:42,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-28 03:21:42,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:42,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 6 letters. [2020-11-28 03:21:42,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:42,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2020-11-28 03:21:42,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:42,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 13 states and 16 transitions. [2020-11-28 03:21:42,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-28 03:21:42,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-28 03:21:42,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2020-11-28 03:21:42,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:21:42,855 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-28 03:21:42,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2020-11-28 03:21:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2020-11-28 03:21:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:21:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-28 03:21:42,863 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-28 03:21:42,863 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-28 03:21:42,863 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:21:42,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2020-11-28 03:21:42,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:42,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:42,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:42,867 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 03:21:42,867 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:42,867 INFO L794 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 208#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 204#L12-2 assume !!!(0 == main_~x~0); 205#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 213#L13-2 main_~c~0 := 1 + main_~c~0; 210#L12-2 [2020-11-28 03:21:42,867 INFO L796 eck$LassoCheckResult]: Loop: 210#L12-2 assume !!!(0 == main_~x~0); 212#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 209#L13-2 main_~c~0 := 1 + main_~c~0; 210#L12-2 [2020-11-28 03:21:42,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,868 INFO L82 PathProgramCache]: Analyzing trace with hash 29684845, now seen corresponding path program 2 times [2020-11-28 03:21:42,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:42,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981361231] [2020-11-28 03:21:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:42,886 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:42,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:42,904 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:42,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,906 INFO L82 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 2 times [2020-11-28 03:21:42,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:42,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563923582] [2020-11-28 03:21:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:42,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:42,934 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:42,935 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:42,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:42,936 INFO L82 PathProgramCache]: Analyzing trace with hash -422032510, now seen corresponding path program 1 times [2020-11-28 03:21:42,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:42,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963212933] [2020-11-28 03:21:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:42,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:42,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:42,969 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:43,003 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:43,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:43,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:43,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:43,003 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:21:43,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:43,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:43,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Loop [2020-11-28 03:21:43,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:43,004 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:43,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,159 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:43,159 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:43,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,164 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:43,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:43,220 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,241 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,241 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,271 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,271 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,299 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:43,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:43,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,370 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,371 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Honda state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 15, 9] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:43,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,402 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,402 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-11-28 03:21:43,470 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:43,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:43,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:43,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:43,471 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:21:43,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,471 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:43,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:43,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2020-11-28 03:21:43,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:43,471 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:43,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,656 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:43,656 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:43,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,667 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,667 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_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:43,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,699 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,699 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,730 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,761 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,761 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,789 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:43,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:43,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,839 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:43,839 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:43,866 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:43,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:43,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:43,981 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:21:43,982 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:43,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:43,982 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:43,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:43,982 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:21:43,982 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:43,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:43,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration3_Lasso [2020-11-28 03:21:43,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:43,983 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:43,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:43,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:44,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:44,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:44,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:44,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:44,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:44,174 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:44,175 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:44,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:44,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:44,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:44,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:44,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:44,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:44,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:44,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:44,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:44,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:44,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:44,264 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:44,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:44,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:44,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:44,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:44,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:44,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:44,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:44,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:44,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:44,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:44,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:44,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:44,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:44,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:44,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:44,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:44,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:21:44,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,457 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:21:44,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,475 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-28 03:21:44,476 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-28 03:21:44,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:21:44,523 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-11-28 03:21:44,523 INFO L444 ModelExtractionUtils]: 4 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_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:44,526 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:44,531 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-11-28 03:21:44,532 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:21:44,532 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~x~0 >= 0] [2020-11-28 03:21:44,559 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-28 03:21:44,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:44,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:21:44,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:44,669 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:21:44,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:44,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:44,712 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-11-28 03:21:44,712 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand 6 states. [2020-11-28 03:21:44,836 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand 6 states. Result 28 states and 35 transitions. Complement of second has 10 states. [2020-11-28 03:21:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2020-11-28 03:21:44,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-28 03:21:44,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-11-28 03:21:44,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-28 03:21:44,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:44,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2020-11-28 03:21:44,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:44,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2020-11-28 03:21:44,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:44,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2020-11-28 03:21:44,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:44,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 24 transitions. [2020-11-28 03:21:44,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-28 03:21:44,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-28 03:21:44,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-11-28 03:21:44,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:21:44,845 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-28 03:21:44,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-11-28 03:21:44,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 11. [2020-11-28 03:21:44,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:21:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-28 03:21:44,853 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:21:44,853 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:21:44,853 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:21:44,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-11-28 03:21:44,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:44,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:44,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:44,856 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2020-11-28 03:21:44,857 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:44,857 INFO L794 eck$LassoCheckResult]: Stem: 315#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 316#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 311#L12-2 assume !!!(0 == main_~x~0); 312#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 319#L13-2 main_~c~0 := 1 + main_~c~0; 313#L12-2 assume !!!(0 == main_~x~0); 314#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 321#L13-2 main_~c~0 := 1 + main_~c~0; 318#L12-2 [2020-11-28 03:21:44,857 INFO L796 eck$LassoCheckResult]: Loop: 318#L12-2 assume !!!(0 == main_~x~0); 320#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 317#L13-2 main_~c~0 := 1 + main_~c~0; 318#L12-2 [2020-11-28 03:21:44,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,858 INFO L82 PathProgramCache]: Analyzing trace with hash -420185530, now seen corresponding path program 2 times [2020-11-28 03:21:44,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:44,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470011047] [2020-11-28 03:21:44,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:44,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470011047] [2020-11-28 03:21:44,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:44,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:44,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585912723] [2020-11-28 03:21:44,957 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:21:44,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,958 INFO L82 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 3 times [2020-11-28 03:21:44,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:44,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804511075] [2020-11-28 03:21:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:44,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:44,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:44,978 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:45,019 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:45,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:45,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:45,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:45,019 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:21:45,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:45,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:45,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:45,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration4_Loop [2020-11-28 03:21:45,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:45,020 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:45,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:45,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:45,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:45,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:45,201 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:45,201 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:45,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:45,205 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:45,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:45,262 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:45,290 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:45,291 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Honda state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 15, 9] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:45,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:45,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:45,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:45,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:45,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:45,395 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:45,400 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:45,400 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:45,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:45,451 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:45,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:45,503 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:45,528 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:45,529 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] [2020-11-28 03:21:45,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:45,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:45,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:45,575 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-28 03:21:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:45,601 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2020-11-28 03:21:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:45,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2020-11-28 03:21:45,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:45,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 14 transitions. [2020-11-28 03:21:45,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-28 03:21:45,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:21:45,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2020-11-28 03:21:45,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:21:45,603 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-11-28 03:21:45,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2020-11-28 03:21:45,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2020-11-28 03:21:45,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:21:45,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-11-28 03:21:45,605 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-11-28 03:21:45,605 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-11-28 03:21:45,605 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:21:45,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2020-11-28 03:21:45,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:45,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:45,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:45,606 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1] [2020-11-28 03:21:45,606 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:45,606 INFO L794 eck$LassoCheckResult]: Stem: 348#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 349#L11 assume main_~x~0 > 0 && main_~y~0 > 0; 344#L12-2 assume !!!(0 == main_~x~0); 345#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 352#L13-2 main_~c~0 := 1 + main_~c~0; 346#L12-2 assume !!!(0 == main_~x~0); 347#L13 assume main_~x~0 > main_~y~0;main_~x~0 := main_~y~0; 354#L13-2 main_~c~0 := 1 + main_~c~0; 351#L12-2 [2020-11-28 03:21:45,606 INFO L796 eck$LassoCheckResult]: Loop: 351#L12-2 assume !!!(0 == main_~x~0); 353#L13 assume !(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1; 350#L13-2 main_~c~0 := 1 + main_~c~0; 351#L12-2 [2020-11-28 03:21:45,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:45,607 INFO L82 PathProgramCache]: Analyzing trace with hash -422032572, now seen corresponding path program 3 times [2020-11-28 03:21:45,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:45,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420172672] [2020-11-28 03:21:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:45,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:45,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420172672] [2020-11-28 03:21:45,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:45,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:21:45,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770324291] [2020-11-28 03:21:45,627 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:21:45,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:45,628 INFO L82 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 4 times [2020-11-28 03:21:45,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:45,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738818745] [2020-11-28 03:21:45,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:45,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:45,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:45,641 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:45,711 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:45,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:45,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:45,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:45,712 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:21:45,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:45,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:45,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:45,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.09-no-inv_assume.c_Iteration5_Loop [2020-11-28 03:21:45,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:45,712 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:45,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:45,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:45,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:45,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:45,868 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:45,868 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) [2020-11-28 03:21:45,878 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:45,878 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:45,886 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:45,886 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_10=0} Honda state: {v_rep~unnamed0~0~false_10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:45,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:45,915 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:45,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:45,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:46,000 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:46,000 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~y~0=1, ULTIMATE.start_main_~x~0=0}] Lambdas: [15, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:46,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:46,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:46,030 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:46,030 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_10=1} Honda state: {v_rep~unnamed0~0~true_10=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:46,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:21:46,058 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0013b857-0969-4c14-8e16-e06278191530/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 [2020-11-28 03:21:46,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:21:46,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:21:46,105 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:21:46,105 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=3}, {ULTIMATE.start_main_~c~0=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] [2020-11-28 03:21:46,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:46,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:21:46,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:21:46,132 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-11-28 03:21:46,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:46,138 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-11-28 03:21:46,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:21:46,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 6 transitions. [2020-11-28 03:21:46,140 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:21:46,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2020-11-28 03:21:46,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:21:46,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:21:46,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:21:46,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:21:46,140 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:46,140 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:46,140 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:46,140 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 03:21:46,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:46,141 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:21:46,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:21:46,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:21:46 BoogieIcfgContainer [2020-11-28 03:21:46,146 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:21:46,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:46,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:46,146 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:46,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:37" (3/4) ... [2020-11-28 03:21:46,154 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:21:46,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:46,156 INFO L168 Benchmark]: Toolchain (without parser) took 8854.76 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 56.7 MB in the beginning and 66.0 MB in the end (delta: -9.3 MB). Peak memory consumption was 32.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:46,156 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 49.5 MB in the beginning and 49.4 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:46,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.73 ms. Allocated memory is still 88.1 MB. Free memory was 56.6 MB in the beginning and 66.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:46,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.97 ms. Allocated memory is still 88.1 MB. Free memory was 66.8 MB in the beginning and 65.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:46,158 INFO L168 Benchmark]: Boogie Preprocessor took 21.27 ms. Allocated memory is still 88.1 MB. Free memory was 65.5 MB in the beginning and 64.6 MB in the end (delta: 982.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:46,159 INFO L168 Benchmark]: RCFGBuilder took 298.26 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 56.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:46,159 INFO L168 Benchmark]: BuchiAutomizer took 8186.31 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 56.1 MB in the beginning and 66.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:46,160 INFO L168 Benchmark]: Witness Printer took 7.92 ms. Allocated memory is still 130.0 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:46,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 49.5 MB in the beginning and 49.4 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.73 ms. Allocated memory is still 88.1 MB. Free memory was 56.6 MB in the beginning and 66.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.97 ms. Allocated memory is still 88.1 MB. Free memory was 66.8 MB in the beginning and 65.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.27 ms. Allocated memory is still 88.1 MB. Free memory was 65.5 MB in the beginning and 64.6 MB in the end (delta: 982.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 298.26 ms. Allocated memory is still 88.1 MB. Free memory was 64.6 MB in the beginning and 56.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8186.31 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 56.1 MB in the beginning and 66.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. * Witness Printer took 7.92 ms. Allocated memory is still 130.0 MB. Free memory is still 66.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 7.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 3. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 23 SDslu, 12 SDs, 0 SdLazy, 43 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax154 hnf96 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf95 smp100 dnf157 smp100 tf103 neg94 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 108ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 11 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...