./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a96387d2ca2f5f27d1a97919b6a11b3894324e22 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:57:02,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:57:02,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:57:02,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:57:02,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:57:02,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:57:02,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:57:02,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:57:02,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:57:02,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:57:02,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:57:02,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:57:02,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:57:02,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:57:02,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:57:02,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:57:02,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:57:02,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:57:02,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:57:02,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:57:02,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:57:02,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:57:02,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:57:02,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:57:02,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:57:02,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:57:02,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:57:02,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:57:02,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:57:02,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:57:02,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:57:02,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:57:02,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:57:02,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:57:02,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:57:02,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:57:02,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:57:02,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:57:02,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:57:02,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:57:02,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:57:02,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 22:57:02,967 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:57:02,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:57:02,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:57:02,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:57:02,969 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:57:02,969 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 22:57:02,969 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 22:57:02,970 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 22:57:02,970 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 22:57:02,970 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 22:57:02,970 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 22:57:02,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:57:02,971 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:57:02,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:57:02,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:57:02,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:57:02,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:57:02,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 22:57:02,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 22:57:02,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 22:57:02,972 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:57:02,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:57:02,973 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 22:57:02,973 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:57:02,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 22:57:02,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:57:02,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:57:02,976 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 22:57:02,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:57:02,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:57:02,977 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 22:57:02,978 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 22:57:02,979 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a96387d2ca2f5f27d1a97919b6a11b3894324e22 [2019-11-15 22:57:03,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:57:03,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:57:03,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:57:03,042 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:57:03,042 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:57:03,043 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/../../sv-benchmarks/c/loops/trex01-1.c [2019-11-15 22:57:03,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/data/9cf407a1e/9d0b79dd25f44229a1e0e485fe9c7537/FLAGc888c8e0b [2019-11-15 22:57:03,492 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:57:03,495 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/sv-benchmarks/c/loops/trex01-1.c [2019-11-15 22:57:03,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/data/9cf407a1e/9d0b79dd25f44229a1e0e485fe9c7537/FLAGc888c8e0b [2019-11-15 22:57:03,855 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/data/9cf407a1e/9d0b79dd25f44229a1e0e485fe9c7537 [2019-11-15 22:57:03,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:57:03,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:57:03,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:57:03,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:57:03,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:57:03,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:57:03" (1/1) ... [2019-11-15 22:57:03,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c99f82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:03, skipping insertion in model container [2019-11-15 22:57:03,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:57:03" (1/1) ... [2019-11-15 22:57:03,878 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:57:03,898 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:57:04,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:57:04,222 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:57:04,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:57:04,261 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:57:04,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04 WrapperNode [2019-11-15 22:57:04,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:57:04,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:57:04,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:57:04,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:57:04,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:57:04,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:57:04,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:57:04,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:57:04,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... [2019-11-15 22:57:04,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:57:04,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:57:04,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:57:04,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:57:04,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:57:04,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:57:04,637 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:57:04,637 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 22:57:04,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:57:04 BoogieIcfgContainer [2019-11-15 22:57:04,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:57:04,639 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 22:57:04,639 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 22:57:04,642 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 22:57:04,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:57:04,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 10:57:03" (1/3) ... [2019-11-15 22:57:04,644 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3137d8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:57:04, skipping insertion in model container [2019-11-15 22:57:04,644 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:57:04,644 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:57:04" (2/3) ... [2019-11-15 22:57:04,644 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3137d8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:57:04, skipping insertion in model container [2019-11-15 22:57:04,644 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:57:04,644 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:57:04" (3/3) ... [2019-11-15 22:57:04,655 INFO L371 chiAutomizerObserver]: Analyzing ICFG trex01-1.c [2019-11-15 22:57:04,702 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 22:57:04,702 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 22:57:04,702 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 22:57:04,703 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:57:04,703 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:57:04,703 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 22:57:04,703 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:57:04,703 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 22:57:04,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2019-11-15 22:57:04,746 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-15 22:57:04,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:04,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:04,754 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 22:57:04,754 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 22:57:04,754 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 22:57:04,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2019-11-15 22:57:04,757 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-15 22:57:04,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:04,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:04,758 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 22:57:04,758 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 22:57:04,763 INFO L791 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 20#L35true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 22#L14true assume !!(f_~k~0 <= 1073741823); 5#L17-1true [2019-11-15 22:57:04,764 INFO L793 eck$LassoCheckResult]: Loop: 5#L17-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 5#L17-1true [2019-11-15 22:57:04,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:04,769 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2019-11-15 22:57:04,775 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:04,775 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988631283] [2019-11-15 22:57:04,775 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:04,775 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:04,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:04,852 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:04,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:04,853 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2019-11-15 22:57:04,853 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:04,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707712242] [2019-11-15 22:57:04,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:04,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:04,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:04,860 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:04,861 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2019-11-15 22:57:04,862 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:04,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604527880] [2019-11-15 22:57:04,862 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:04,862 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:04,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:04,878 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:04,973 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:04,974 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:04,974 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:04,974 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:04,974 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:04,974 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:04,974 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:04,975 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:04,975 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration1_Lasso [2019-11-15 22:57:04,975 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:04,975 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:04,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:04,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:05,227 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:05,227 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:05,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:05,247 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:05,256 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:05,257 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) [2019-11-15 22:57:05,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:05,275 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:05,281 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:05,281 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:05,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:05,302 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) [2019-11-15 22:57:05,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:05,322 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:17,436 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-11-15 22:57:17,443 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:17,444 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:17,444 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:17,444 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:17,444 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:17,444 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:17,444 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:17,444 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:17,445 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration1_Lasso [2019-11-15 22:57:17,445 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:17,445 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:17,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:17,648 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:17,654 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:17,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:17,657 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:17,660 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:17,661 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:17,661 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:17,661 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:17,663 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:17,663 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:17,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:17,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:17,669 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:17,669 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:17,669 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:17,669 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:17,669 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:17,670 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:17,670 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:17,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:17,674 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:17,675 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:17,676 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:17,676 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:17,676 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:17,676 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:17,677 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:17,677 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:17,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:17,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:17,681 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:17,681 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:17,681 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:17,682 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:17,698 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:17,698 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:17,813 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:17,868 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-15 22:57:17,868 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:57:17,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:17,874 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:17,874 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:17,875 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2019-11-15 22:57:17,881 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:17,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:17,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 22:57:17,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:17,985 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:17,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:18,004 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-11-15 22:57:18,006 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2019-11-15 22:57:18,095 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 69 states and 99 transitions. Complement of second has 7 states. [2019-11-15 22:57:18,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:18,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:57:18,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2019-11-15 22:57:18,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-15 22:57:18,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:18,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-15 22:57:18,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:18,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-15 22:57:18,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:18,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 99 transitions. [2019-11-15 22:57:18,108 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2019-11-15 22:57:18,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 23 states and 31 transitions. [2019-11-15 22:57:18,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2019-11-15 22:57:18,113 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2019-11-15 22:57:18,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2019-11-15 22:57:18,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:57:18,114 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-15 22:57:18,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2019-11-15 22:57:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2019-11-15 22:57:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-15 22:57:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2019-11-15 22:57:18,137 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-15 22:57:18,137 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-15 22:57:18,137 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 22:57:18,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2019-11-15 22:57:18,138 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-15 22:57:18,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:18,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:18,139 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 22:57:18,139 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 22:57:18,139 INFO L791 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 148#L35 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 153#L14-1 assume !!(f_~k~0 <= 1073741823); 152#L17-4 [2019-11-15 22:57:18,140 INFO L793 eck$LassoCheckResult]: Loop: 152#L17-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 152#L17-4 [2019-11-15 22:57:18,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:18,140 INFO L82 PathProgramCache]: Analyzing trace with hash 32453, now seen corresponding path program 1 times [2019-11-15 22:57:18,140 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:18,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705688188] [2019-11-15 22:57:18,140 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:18,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:18,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:18,151 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:18,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:18,152 INFO L82 PathProgramCache]: Analyzing trace with hash 98, now seen corresponding path program 1 times [2019-11-15 22:57:18,152 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:18,152 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086734162] [2019-11-15 22:57:18,153 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:18,153 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:18,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:18,159 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:18,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:18,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1006110, now seen corresponding path program 1 times [2019-11-15 22:57:18,160 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:18,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292700344] [2019-11-15 22:57:18,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:18,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:18,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:18,171 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:18,218 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:18,218 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:18,219 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:18,219 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:18,219 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:18,219 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,219 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:18,219 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:18,219 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration2_Lasso [2019-11-15 22:57:18,220 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:18,220 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:18,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:18,412 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:18,412 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:18,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,431 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,436 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,436 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_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) [2019-11-15 22:57:18,456 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,456 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,461 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,465 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) [2019-11-15 22:57:18,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,492 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,505 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,506 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) [2019-11-15 22:57:18,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,519 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,524 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:18,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,542 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,547 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) [2019-11-15 22:57:18,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,562 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,569 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,570 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~d=0, ULTIMATE.start_f_#in~d=0} Honda state: {ULTIMATE.start_f_~d=2, ULTIMATE.start_f_#in~d=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:18,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,586 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,591 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,591 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:18,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,606 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:18,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,610 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:18,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,627 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 [2019-11-15 22:57:18,634 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:18,634 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:18,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:18,650 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:18,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:18,673 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:30,723 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-11-15 22:57:30,730 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:30,730 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:30,730 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:30,730 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:30,730 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:30,730 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:30,731 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:30,731 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:30,731 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration2_Lasso [2019-11-15 22:57:30,731 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:30,731 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:30,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:30,950 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:30,951 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:30,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:30,952 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:30,952 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:30,952 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:30,953 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:30,953 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:30,953 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:30,953 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:30,954 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:30,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:30,955 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:30,955 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:30,956 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:30,956 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:30,956 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:30,956 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:30,957 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:30,970 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:30,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:30,971 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:30,972 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:30,972 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:30,972 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:30,972 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:30,973 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:30,973 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:30,974 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:30,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:30,978 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:30,978 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:30,978 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:30,978 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:30,980 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:30,980 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:30,981 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:30,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:30,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:30,983 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:30,984 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:30,984 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:30,984 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:30,984 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:30,985 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:30,985 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:30,986 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:30,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:30,990 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:30,991 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:30,991 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:30,991 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:30,991 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:30,992 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:30,992 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:30,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:30,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:30,995 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:30,995 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:30,995 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:30,995 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:30,999 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:31,000 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:31,099 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:31,132 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-15 22:57:31,135 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-11-15 22:57:31,136 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:31,137 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:31,138 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:31,138 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2019-11-15 22:57:31,141 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:31,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:31,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 22:57:31,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:31,210 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:31,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:31,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:31,211 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-11-15 22:57:31,212 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-15 22:57:31,278 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 40 transitions. Complement of second has 6 states. [2019-11-15 22:57:31,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:31,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:57:31,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-15 22:57:31,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-15 22:57:31,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:31,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-15 22:57:31,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:31,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-15 22:57:31,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:31,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 40 transitions. [2019-11-15 22:57:31,283 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2019-11-15 22:57:31,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 24 states and 33 transitions. [2019-11-15 22:57:31,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2019-11-15 22:57:31,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2019-11-15 22:57:31,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 33 transitions. [2019-11-15 22:57:31,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:57:31,289 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-15 22:57:31,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 33 transitions. [2019-11-15 22:57:31,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2019-11-15 22:57:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 22:57:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-11-15 22:57:31,293 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-15 22:57:31,293 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-15 22:57:31,293 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 22:57:31,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-11-15 22:57:31,296 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 22:57:31,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:31,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:31,298 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:57:31,298 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:57:31,299 INFO L791 eck$LassoCheckResult]: Stem: 236#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 237#L35 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 244#L14 assume !!(f_~k~0 <= 1073741823); 229#L17-1 assume !(f_~z~0 < f_~k~0); 227#L17-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 228#L4 assume !(0 == __VERIFIER_assert_~cond); 234#L22-2 [2019-11-15 22:57:31,299 INFO L793 eck$LassoCheckResult]: Loop: 234#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 235#L22 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 234#L22-2 [2019-11-15 22:57:31,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:31,299 INFO L82 PathProgramCache]: Analyzing trace with hash 920111122, now seen corresponding path program 1 times [2019-11-15 22:57:31,300 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:31,300 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550356826] [2019-11-15 22:57:31,300 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,301 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:31,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550356826] [2019-11-15 22:57:31,373 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:57:31,374 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:57:31,374 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416616576] [2019-11-15 22:57:31,377 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-15 22:57:31,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:31,377 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 1 times [2019-11-15 22:57:31,378 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:31,378 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159178131] [2019-11-15 22:57:31,378 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,378 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:31,397 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:31,435 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:57:31,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:57:31,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:57:31,439 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-15 22:57:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:57:31,499 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2019-11-15 22:57:31,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:57:31,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2019-11-15 22:57:31,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 22:57:31,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2019-11-15 22:57:31,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-15 22:57:31,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-15 22:57:31,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2019-11-15 22:57:31,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:57:31,502 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-15 22:57:31,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2019-11-15 22:57:31,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-15 22:57:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 22:57:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-15 22:57:31,505 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-15 22:57:31,505 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-15 22:57:31,505 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 22:57:31,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2019-11-15 22:57:31,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 22:57:31,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:31,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:31,510 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:57:31,510 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:57:31,511 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 286#L35 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 293#L14 assume !!(f_~k~0 <= 1073741823); 278#L17-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 279#L17-1 assume !(f_~z~0 < f_~k~0); 276#L17-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 277#L4 assume !(0 == __VERIFIER_assert_~cond); 283#L22-2 [2019-11-15 22:57:31,511 INFO L793 eck$LassoCheckResult]: Loop: 283#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 284#L22 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 283#L22-2 [2019-11-15 22:57:31,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:31,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1541272662, now seen corresponding path program 1 times [2019-11-15 22:57:31,512 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:31,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425897218] [2019-11-15 22:57:31,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:31,539 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:31,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:31,541 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 2 times [2019-11-15 22:57:31,542 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:31,542 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941553966] [2019-11-15 22:57:31,542 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,542 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:31,551 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:31,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:31,552 INFO L82 PathProgramCache]: Analyzing trace with hash 600690225, now seen corresponding path program 1 times [2019-11-15 22:57:31,552 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:31,553 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327213299] [2019-11-15 22:57:31,553 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,553 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:31,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:31,589 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:31,817 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2019-11-15 22:57:31,819 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:31,819 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:31,819 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:31,819 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:31,819 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:31,819 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:31,819 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:31,820 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:31,820 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration4_Lasso [2019-11-15 22:57:31,820 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:31,820 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:31,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:31,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,059 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:32,059 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:32,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:32,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:32,086 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:32,086 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:32,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:32,103 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:32,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:32,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:32,227 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:57:32,230 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:32,230 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:32,230 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:32,230 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:32,230 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:32,231 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:32,231 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:32,231 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:32,231 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration4_Lasso [2019-11-15 22:57:32,231 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:32,231 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:32,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,505 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:32,505 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:32,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:32,506 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:32,506 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:32,506 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:32,506 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:32,508 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:32,508 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:32,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:32,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:32,523 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:32,524 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:32,525 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:32,526 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:32,527 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:32,528 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:32,540 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:32,557 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-15 22:57:32,559 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-11-15 22:57:32,560 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:32,563 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:32,563 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:32,563 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2019-11-15 22:57:32,569 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:32,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:32,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:32,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:32,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:32,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:32,674 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:32,674 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-15 22:57:32,723 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 24 states and 31 transitions. Complement of second has 6 states. [2019-11-15 22:57:32,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-11-15 22:57:32,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-15 22:57:32,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:32,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-15 22:57:32,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:32,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-15 22:57:32,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:32,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2019-11-15 22:57:32,727 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 22:57:32,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 30 transitions. [2019-11-15 22:57:32,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-11-15 22:57:32,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-11-15 22:57:32,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-15 22:57:32,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:57:32,728 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-15 22:57:32,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-15 22:57:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-15 22:57:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 22:57:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-11-15 22:57:32,735 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-11-15 22:57:32,735 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-11-15 22:57:32,735 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 22:57:32,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2019-11-15 22:57:32,738 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 22:57:32,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:32,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:32,740 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:57:32,740 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:57:32,741 INFO L791 eck$LassoCheckResult]: Stem: 389#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 390#L35 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 394#L14-1 assume !!(f_~k~0 <= 1073741823); 395#L17-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 396#L17-4 assume !(f_~z~0 < f_~k~0); 393#L17-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 392#L4-3 assume !(0 == __VERIFIER_assert_~cond); 381#L22-5 [2019-11-15 22:57:32,742 INFO L793 eck$LassoCheckResult]: Loop: 381#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 382#L22-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 381#L22-5 [2019-11-15 22:57:32,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:32,742 INFO L82 PathProgramCache]: Analyzing trace with hash -91683318, now seen corresponding path program 1 times [2019-11-15 22:57:32,743 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:32,743 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687594068] [2019-11-15 22:57:32,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:32,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:32,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:32,760 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:32,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:32,762 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 1 times [2019-11-15 22:57:32,762 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:32,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750190801] [2019-11-15 22:57:32,762 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:32,762 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:32,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:32,772 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:32,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:32,773 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647473, now seen corresponding path program 1 times [2019-11-15 22:57:32,773 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:32,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532434620] [2019-11-15 22:57:32,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:32,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:32,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:32,797 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:32,963 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:32,963 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:32,964 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:32,964 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:32,964 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:32,964 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:32,964 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:32,964 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:32,964 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration5_Lasso [2019-11-15 22:57:32,965 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:32,965 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:32,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:32,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,201 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:33,202 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:33,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:33,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:33,209 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:33,209 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_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:33,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:33,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:33,225 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:33,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:33,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:33,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:33,245 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:33,245 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:33,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:33,251 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:33,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:33,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:33,345 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:57:33,346 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:33,347 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:33,347 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:33,347 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:33,347 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:33,347 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:33,347 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:33,347 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:33,347 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration5_Lasso [2019-11-15 22:57:33,347 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:33,347 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:33,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,590 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:33,590 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:33,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,591 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,591 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:33,592 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,592 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,592 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,592 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:33,592 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:33,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,594 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,594 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,594 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,594 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,595 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:33,595 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:33,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,599 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,599 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,599 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,599 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,601 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:33,601 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:33,607 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,608 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,608 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:33,609 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,609 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,609 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,609 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:33,610 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:33,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,611 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,611 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:33,612 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,612 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,612 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,613 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:33,613 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:33,614 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,616 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,616 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:33,617 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,617 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,617 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,617 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:33,617 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:33,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,620 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,620 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,620 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,621 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,629 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:33,629 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:33,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,641 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,641 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:33,642 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,642 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,642 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,642 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:33,643 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:33,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,644 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,644 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:33,645 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,645 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,645 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,645 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:33,646 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:33,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:33,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:33,647 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:33,647 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:33,648 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:33,648 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:33,661 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:33,661 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:33,671 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:33,677 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:57:33,677 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:57:33,678 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:33,679 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:33,679 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:33,679 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2019-11-15 22:57:33,682 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:33,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:33,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:33,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:33,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:33,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:33,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:33,757 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:33,757 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-15 22:57:33,798 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 28 states and 37 transitions. Complement of second has 6 states. [2019-11-15 22:57:33,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:33,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2019-11-15 22:57:33,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-15 22:57:33,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:33,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-15 22:57:33,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:33,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-15 22:57:33,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:33,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2019-11-15 22:57:33,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 22:57:33,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2019-11-15 22:57:33,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-15 22:57:33,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2019-11-15 22:57:33,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2019-11-15 22:57:33,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:57:33,802 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-15 22:57:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2019-11-15 22:57:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2019-11-15 22:57:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-15 22:57:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2019-11-15 22:57:33,805 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2019-11-15 22:57:33,805 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2019-11-15 22:57:33,805 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-15 22:57:33,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2019-11-15 22:57:33,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 22:57:33,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:33,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:33,806 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:57:33,806 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:57:33,807 INFO L791 eck$LassoCheckResult]: Stem: 501#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 502#L35 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 510#L14 assume !!(f_~k~0 <= 1073741823); 488#L17-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 489#L17-1 assume !(f_~z~0 < f_~k~0); 486#L17-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 487#L4 assume !(0 == __VERIFIER_assert_~cond); 511#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 500#L22 assume 0 != f_~c~0 % 256; 503#L23 [2019-11-15 22:57:33,807 INFO L793 eck$LassoCheckResult]: Loop: 503#L23 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 496#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 497#L22 assume 0 != f_~c~0 % 256; 503#L23 [2019-11-15 22:57:33,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:33,807 INFO L82 PathProgramCache]: Analyzing trace with hash 600690221, now seen corresponding path program 1 times [2019-11-15 22:57:33,807 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:33,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919977305] [2019-11-15 22:57:33,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:33,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:33,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:33,830 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:33,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:33,831 INFO L82 PathProgramCache]: Analyzing trace with hash 74319, now seen corresponding path program 1 times [2019-11-15 22:57:33,832 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:33,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229645199] [2019-11-15 22:57:33,832 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:33,832 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:33,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:33,849 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:33,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:33,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304093, now seen corresponding path program 1 times [2019-11-15 22:57:33,850 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:33,851 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146989239] [2019-11-15 22:57:33,851 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:33,851 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:33,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:33,880 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:33,938 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:33,939 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:33,939 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:33,939 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:33,939 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:33,939 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:33,940 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:33,940 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:33,940 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Loop [2019-11-15 22:57:33,940 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:33,940 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:33,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:33,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,112 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:34,112 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,119 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,119 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,135 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=159, ULTIMATE.start_f_~y~0=159} Honda state: {ULTIMATE.start_f_#t~nondet4=159, ULTIMATE.start_f_~y~0=159} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,150 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,150 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-220, ULTIMATE.start_f_~c~0=-220} Honda state: {ULTIMATE.start_f_#t~nondet3=-220, ULTIMATE.start_f_~c~0=-220} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,156 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:34,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,176 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,177 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-2}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=4}] Lambdas: [1, 1, 1] Nus: [0, 0] [2019-11-15 22:57:34,317 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:34,317 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:34,317 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:34,317 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:34,317 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:34,317 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,317 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:34,318 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:34,318 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Lasso [2019-11-15 22:57:34,318 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:34,318 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:34,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:34,673 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:34,673 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,679 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:34,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,703 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=-6}, {ULTIMATE.start_f_~z~0=-3, ULTIMATE.start_f_~k~0=5}, {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=1}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,719 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,719 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0, ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_#t~nondet4=63, ULTIMATE.start_f_~y~0=63} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,754 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=96} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,762 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,762 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,778 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,779 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_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,786 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,786 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,796 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,796 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=0, ULTIMATE.start___VERIFIER_assert_~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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 [2019-11-15 22:57:34,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,804 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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 [2019-11-15 22:57:34,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:34,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:34,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:34,822 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:34,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:34,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:35,046 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:57:35,047 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:35,047 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:35,048 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:35,048 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:35,048 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:35,048 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:35,048 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:35,048 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:35,048 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Lasso [2019-11-15 22:57:35,048 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:35,048 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:35,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,350 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:35,350 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:35,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:35,351 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:35,351 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:35,351 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:35,351 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:35,352 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:35,353 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:35,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:35,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:35,360 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:35,360 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:35,360 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:35,360 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:35,362 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:35,362 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:35,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:35,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:35,370 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:35,370 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:35,370 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:35,370 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:35,370 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:35,370 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:35,371 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:35,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:35,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:35,372 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:35,372 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:35,372 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:35,372 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:35,373 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:35,373 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:35,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:35,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:35,379 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:35,379 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:35,380 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:35,380 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:35,381 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:35,381 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:35,391 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:35,397 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-15 22:57:35,397 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:57:35,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:35,398 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:35,399 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:35,399 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2019-11-15 22:57:35,405 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:35,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:35,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:35,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:35,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:35,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:35,507 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-15 22:57:35,507 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15 Second operand 5 states. [2019-11-15 22:57:35,549 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 36 states and 48 transitions. Complement of second has 7 states. [2019-11-15 22:57:35,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-15 22:57:35,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2019-11-15 22:57:35,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 22:57:35,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:35,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-15 22:57:35,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:35,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-15 22:57:35,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:35,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2019-11-15 22:57:35,555 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-15 22:57:35,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 32 states and 43 transitions. [2019-11-15 22:57:35,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-15 22:57:35,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2019-11-15 22:57:35,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2019-11-15 22:57:35,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:57:35,556 INFO L688 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-11-15 22:57:35,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2019-11-15 22:57:35,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2019-11-15 22:57:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-15 22:57:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-11-15 22:57:35,559 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-11-15 22:57:35,559 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-11-15 22:57:35,559 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-15 22:57:35,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2019-11-15 22:57:35,559 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-15 22:57:35,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:35,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:35,560 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:57:35,560 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:57:35,560 INFO L791 eck$LassoCheckResult]: Stem: 633#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 634#L35 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 645#L14-1 assume !!(f_~k~0 <= 1073741823); 643#L17-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 644#L17-4 assume !(f_~z~0 < f_~k~0); 639#L17-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 637#L4-3 assume !(0 == __VERIFIER_assert_~cond); 638#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 627#L22-3 assume 0 != f_~c~0 % 256; 628#L23-1 [2019-11-15 22:57:35,560 INFO L793 eck$LassoCheckResult]: Loop: 628#L23-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 623#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 624#L22-3 assume 0 != f_~c~0 % 256; 628#L23-1 [2019-11-15 22:57:35,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:35,560 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647469, now seen corresponding path program 1 times [2019-11-15 22:57:35,560 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:35,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816514236] [2019-11-15 22:57:35,561 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:35,561 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:35,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:35,572 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:35,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:35,572 INFO L82 PathProgramCache]: Analyzing trace with hash 122976, now seen corresponding path program 1 times [2019-11-15 22:57:35,573 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:35,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667424960] [2019-11-15 22:57:35,573 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:35,573 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:35,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:35,579 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:35,579 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800140, now seen corresponding path program 1 times [2019-11-15 22:57:35,579 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:35,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190609376] [2019-11-15 22:57:35,580 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:35,580 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:35,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:35,595 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:35,652 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:35,653 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:35,653 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:35,653 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:35,653 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:35,653 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:35,653 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:35,653 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:35,653 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Loop [2019-11-15 22:57:35,654 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:35,654 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:35,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:35,800 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:35,800 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:35,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:35,803 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:35,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:35,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:35,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:35,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-2}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=4}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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 [2019-11-15 22:57:35,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:35,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:35,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:35,841 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-242, ULTIMATE.start_f_~c~0=-242} Honda state: {ULTIMATE.start_f_#t~nondet3=-242, ULTIMATE.start_f_~c~0=-242} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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 [2019-11-15 22:57:35,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:35,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:35,852 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:35,852 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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 [2019-11-15 22:57:35,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:35,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:35,866 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:35,866 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=99, ULTIMATE.start_f_~y~0=99} Honda state: {ULTIMATE.start_f_#t~nondet4=99, ULTIMATE.start_f_~y~0=99} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-11-15 22:57:35,997 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:35,997 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:35,997 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:35,998 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:35,998 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:35,998 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:35,998 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:35,998 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:35,998 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Lasso [2019-11-15 22:57:35,998 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:35,998 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:35,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,220 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:36,220 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,238 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,238 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=240, ULTIMATE.start_f_#t~nondet3=240} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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 [2019-11-15 22:57:36,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,250 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,250 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,266 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,278 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,278 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,287 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:36,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,315 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,315 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~k~0=2, ULTIMATE.start_f_~z~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~k~0=-1, ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~k~0=6, ULTIMATE.start_f_~z~0=6}, {ULTIMATE.start_f_~k~0=-5, ULTIMATE.start_f_~z~0=-6}] Lambdas: [7, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,322 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,323 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_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,345 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0, ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_~y~0=255, ULTIMATE.start_f_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,353 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,353 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,360 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,370 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:36,370 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:36,379 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:36,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:36,587 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:57:36,589 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:36,589 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:36,589 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:36,589 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:36,589 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:36,589 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:36,590 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:36,590 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:36,590 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Lasso [2019-11-15 22:57:36,590 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:36,590 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:36,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:36,825 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:36,825 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:36,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,826 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,826 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,826 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,827 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,827 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:36,827 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:36,829 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,830 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,830 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:36,830 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,830 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,830 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,831 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:36,831 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:36,831 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,832 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,832 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,832 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,832 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,833 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:36,833 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:36,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,836 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,836 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:36,836 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,836 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,836 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,837 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:36,837 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:36,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,840 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,840 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,840 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,840 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,841 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:36,841 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:36,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,847 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,847 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:36,847 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,848 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,848 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,848 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:36,848 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:36,849 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,850 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,850 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:36,850 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,851 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,851 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,851 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:36,851 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:36,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,853 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,853 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,853 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,853 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,855 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:36,855 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:36,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,861 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,861 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,862 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,862 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,863 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:36,863 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:36,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:36,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:36,869 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:36,869 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:36,870 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:36,870 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:36,871 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:36,871 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:36,880 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:36,884 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:57:36,884 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:57:36,884 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:36,885 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:36,886 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:36,886 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2019-11-15 22:57:36,896 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:36,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:36,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:36,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:36,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:36,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:36,980 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-15 22:57:36,981 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18 Second operand 5 states. [2019-11-15 22:57:37,043 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 41 states and 55 transitions. Complement of second has 7 states. [2019-11-15 22:57:37,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:37,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-15 22:57:37,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2019-11-15 22:57:37,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 22:57:37,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:37,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-15 22:57:37,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:37,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-15 22:57:37,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:37,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 55 transitions. [2019-11-15 22:57:37,046 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-15 22:57:37,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 50 transitions. [2019-11-15 22:57:37,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-15 22:57:37,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2019-11-15 22:57:37,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2019-11-15 22:57:37,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:57:37,048 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2019-11-15 22:57:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2019-11-15 22:57:37,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-11-15 22:57:37,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-15 22:57:37,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2019-11-15 22:57:37,055 INFO L711 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2019-11-15 22:57:37,055 INFO L591 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2019-11-15 22:57:37,055 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-15 22:57:37,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2019-11-15 22:57:37,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-15 22:57:37,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:37,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:37,057 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:57:37,058 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:57:37,058 INFO L791 eck$LassoCheckResult]: Stem: 778#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 779#L35 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 792#L14 assume !!(f_~k~0 <= 1073741823); 764#L17-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 765#L17-1 assume !(f_~z~0 < f_~k~0); 762#L17-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 763#L4 assume !(0 == __VERIFIER_assert_~cond); 793#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 794#L22 assume 0 != f_~c~0 % 256; 786#L23 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 787#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 795#L22 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 774#L22-2 [2019-11-15 22:57:37,058 INFO L793 eck$LassoCheckResult]: Loop: 774#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 775#L22 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 774#L22-2 [2019-11-15 22:57:37,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:37,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304089, now seen corresponding path program 1 times [2019-11-15 22:57:37,059 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:37,059 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215355562] [2019-11-15 22:57:37,059 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:37,059 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:37,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:37,073 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:37,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:37,073 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 3 times [2019-11-15 22:57:37,074 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:37,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420418015] [2019-11-15 22:57:37,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:37,074 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:37,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:37,080 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:37,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:37,080 INFO L82 PathProgramCache]: Analyzing trace with hash 167381998, now seen corresponding path program 2 times [2019-11-15 22:57:37,081 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:37,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246769374] [2019-11-15 22:57:37,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:37,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:37,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:37,100 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:37,266 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-11-15 22:57:37,346 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:37,346 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:37,346 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:37,346 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:37,346 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:37,346 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:37,346 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:37,346 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:37,347 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration8_Lasso [2019-11-15 22:57:37,347 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:37,347 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:37,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:37,634 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:37,635 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:37,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:37,638 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:37,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:37,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:38,295 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:57:38,297 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:38,297 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:38,297 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:38,297 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:38,297 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:38,297 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:38,297 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:38,297 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:38,298 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration8_Lasso [2019-11-15 22:57:38,298 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:38,298 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:38,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:38,629 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:38,630 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:38,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:38,630 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:38,630 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:38,630 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:38,631 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:38,631 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:38,631 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:38,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:38,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:38,633 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:38,633 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:38,633 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:38,633 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:38,634 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:38,634 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:38,656 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:38,670 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-15 22:57:38,676 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2019-11-15 22:57:38,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:38,680 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:38,680 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:38,681 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2019-11-15 22:57:38,683 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:38,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:38,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:38,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:38,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:38,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:38,782 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:38,782 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21 Second operand 4 states. [2019-11-15 22:57:38,832 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21. Second operand 4 states. Result 54 states and 71 transitions. Complement of second has 6 states. [2019-11-15 22:57:38,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:38,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:38,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-15 22:57:38,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-15 22:57:38,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:38,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-15 22:57:38,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:38,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-15 22:57:38,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:38,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2019-11-15 22:57:38,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-15 22:57:38,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 61 transitions. [2019-11-15 22:57:38,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-11-15 22:57:38,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2019-11-15 22:57:38,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 61 transitions. [2019-11-15 22:57:38,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:57:38,837 INFO L688 BuchiCegarLoop]: Abstraction has 46 states and 61 transitions. [2019-11-15 22:57:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 61 transitions. [2019-11-15 22:57:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2019-11-15 22:57:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-15 22:57:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2019-11-15 22:57:38,840 INFO L711 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2019-11-15 22:57:38,841 INFO L591 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2019-11-15 22:57:38,841 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-15 22:57:38,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 59 transitions. [2019-11-15 22:57:38,845 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-15 22:57:38,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:38,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:38,846 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:57:38,846 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:57:38,847 INFO L791 eck$LassoCheckResult]: Stem: 941#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 942#L35 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 956#L14-1 assume !!(f_~k~0 <= 1073741823); 957#L17-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 958#L17-4 assume !(f_~z~0 < f_~k~0); 952#L17-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 950#L4-3 assume !(0 == __VERIFIER_assert_~cond); 951#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 960#L22-3 assume 0 != f_~c~0 % 256; 947#L23-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 948#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 963#L22-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 930#L22-5 [2019-11-15 22:57:38,847 INFO L793 eck$LassoCheckResult]: Loop: 930#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 931#L22-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 930#L22-5 [2019-11-15 22:57:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:38,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800136, now seen corresponding path program 1 times [2019-11-15 22:57:38,848 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:38,850 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034161183] [2019-11-15 22:57:38,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:38,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:38,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:38,866 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:38,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:38,867 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 2 times [2019-11-15 22:57:38,867 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:38,867 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211664317] [2019-11-15 22:57:38,867 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:38,868 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:38,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:38,887 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:38,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:38,890 INFO L82 PathProgramCache]: Analyzing trace with hash 630126431, now seen corresponding path program 2 times [2019-11-15 22:57:38,890 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:38,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705592384] [2019-11-15 22:57:38,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:38,891 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:38,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:38,907 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:39,083 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-11-15 22:57:39,185 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:39,185 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:39,186 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:39,186 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:39,186 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:39,186 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:39,186 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:39,186 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:39,186 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration9_Lasso [2019-11-15 22:57:39,186 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:39,186 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:39,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:39,504 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:39,504 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) [2019-11-15 22:57:39,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:39,510 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 [2019-11-15 22:57:39,526 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:39,526 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:39,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:39,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:39,539 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:39,539 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/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 [2019-11-15 22:57:39,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:39,544 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:39,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:39,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:40,170 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:57:40,171 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:40,171 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:40,172 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:40,172 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:40,172 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:40,172 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:40,172 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:40,172 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:40,172 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration9_Lasso [2019-11-15 22:57:40,172 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:40,172 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:40,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,450 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:40,450 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:40,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:40,451 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:40,451 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:40,451 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:40,451 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:40,452 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:40,452 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:40,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:40,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:40,455 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:40,456 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:40,456 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:40,456 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:40,456 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:40,456 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:40,456 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:40,457 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:40,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:40,461 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:40,462 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:40,462 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:40,462 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:40,463 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:40,464 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:40,474 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:40,497 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 22:57:40,498 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-11-15 22:57:40,499 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:40,500 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:40,500 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:40,500 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2019-11-15 22:57:40,503 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:40,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:40,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:40,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:40,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:40,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:40,578 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:40,578 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25 Second operand 4 states. [2019-11-15 22:57:40,621 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25. Second operand 4 states. Result 62 states and 81 transitions. Complement of second has 6 states. [2019-11-15 22:57:40,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:40,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-15 22:57:40,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-15 22:57:40,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:40,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-15 22:57:40,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:40,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-15 22:57:40,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:40,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2019-11-15 22:57:40,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-15 22:57:40,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 54 states and 71 transitions. [2019-11-15 22:57:40,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-11-15 22:57:40,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-11-15 22:57:40,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 71 transitions. [2019-11-15 22:57:40,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:57:40,626 INFO L688 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2019-11-15 22:57:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 71 transitions. [2019-11-15 22:57:40,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2019-11-15 22:57:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-15 22:57:40,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2019-11-15 22:57:40,633 INFO L711 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-11-15 22:57:40,633 INFO L591 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-11-15 22:57:40,633 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-15 22:57:40,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 69 transitions. [2019-11-15 22:57:40,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-15 22:57:40,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:40,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:40,636 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:57:40,636 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:57:40,636 INFO L791 eck$LassoCheckResult]: Stem: 1122#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1123#L35 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1136#L14 assume !!(f_~k~0 <= 1073741823); 1108#L17-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1109#L17-1 assume !(f_~z~0 < f_~k~0); 1106#L17-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1107#L4 assume !(0 == __VERIFIER_assert_~cond); 1137#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1142#L22 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1143#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1144#L22 assume 0 != f_~c~0 % 256; 1149#L23 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1148#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1146#L22 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1118#L22-2 [2019-11-15 22:57:40,637 INFO L793 eck$LassoCheckResult]: Loop: 1118#L22-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1119#L22 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1118#L22-2 [2019-11-15 22:57:40,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:40,637 INFO L82 PathProgramCache]: Analyzing trace with hash 277368448, now seen corresponding path program 3 times [2019-11-15 22:57:40,637 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:40,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150877839] [2019-11-15 22:57:40,638 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:40,638 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:40,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:40,655 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:40,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:40,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 4 times [2019-11-15 22:57:40,656 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:40,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240065638] [2019-11-15 22:57:40,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:40,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:40,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:40,662 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:40,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:40,663 INFO L82 PathProgramCache]: Analyzing trace with hash 263107463, now seen corresponding path program 4 times [2019-11-15 22:57:40,663 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:40,663 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576283499] [2019-11-15 22:57:40,663 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:40,664 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:40,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:40,690 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:40,848 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-11-15 22:57:40,924 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:40,924 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:40,924 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:40,924 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:40,924 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:40,924 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:40,924 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:40,924 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:40,924 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration10_Lasso [2019-11-15 22:57:40,924 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:40,924 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:40,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:40,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,153 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:41,154 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:41,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:41,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:41,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:41,169 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:41,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:41,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:41,177 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:41,177 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:41,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:41,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:41,185 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:41,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:41,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:41,189 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:41,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:41,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:41,481 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:57:41,483 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:41,483 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:41,483 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:41,483 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:41,483 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:41,483 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:41,483 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:41,483 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:41,484 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration10_Lasso [2019-11-15 22:57:41,484 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:41,484 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:41,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:41,727 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:41,727 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:41,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:41,728 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:41,728 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:41,728 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:41,728 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:41,728 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:41,728 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:41,728 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:41,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:41,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:41,729 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:41,729 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:41,730 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:41,730 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:41,730 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:41,730 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:41,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:41,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:41,733 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:41,733 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:41,733 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:41,733 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:41,734 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:41,734 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:41,743 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:41,749 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-15 22:57:41,750 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-11-15 22:57:41,750 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:41,751 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:41,751 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:41,751 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2019-11-15 22:57:41,757 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:41,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:41,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:41,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:41,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:41,840 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:41,840 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2019-11-15 22:57:41,888 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 60 states and 77 transitions. Complement of second has 6 states. [2019-11-15 22:57:41,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-15 22:57:41,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-15 22:57:41,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:41,894 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:57:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:41,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:41,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:41,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:41,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:42,011 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:42,011 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2019-11-15 22:57:42,046 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 60 states and 77 transitions. Complement of second has 6 states. [2019-11-15 22:57:42,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:42,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-15 22:57:42,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-15 22:57:42,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:42,048 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:57:42,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:42,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:42,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:42,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:42,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:42,114 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:42,114 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2019-11-15 22:57:42,158 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 63 states and 82 transitions. Complement of second has 5 states. [2019-11-15 22:57:42,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2019-11-15 22:57:42,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-15 22:57:42,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:42,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-15 22:57:42,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:42,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-15 22:57:42,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:42,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2019-11-15 22:57:42,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:57:42,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 27 states and 35 transitions. [2019-11-15 22:57:42,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-15 22:57:42,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-15 22:57:42,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2019-11-15 22:57:42,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:57:42,163 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-15 22:57:42,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2019-11-15 22:57:42,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-15 22:57:42,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-15 22:57:42,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-11-15 22:57:42,165 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-15 22:57:42,165 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-15 22:57:42,165 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-15 22:57:42,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2019-11-15 22:57:42,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:57:42,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:57:42,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:57:42,167 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:57:42,167 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:57:42,168 INFO L791 eck$LassoCheckResult]: Stem: 1536#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1537#L35 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1550#L14-1 assume !!(f_~k~0 <= 1073741823); 1548#L17-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1549#L17-4 assume !(f_~z~0 < f_~k~0); 1547#L17-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1541#L4-3 assume !(0 == __VERIFIER_assert_~cond); 1542#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1544#L22-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1562#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1560#L22-3 assume 0 != f_~c~0 % 256; 1558#L23-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1557#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1555#L22-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1552#L22-5 [2019-11-15 22:57:42,168 INFO L793 eck$LassoCheckResult]: Loop: 1552#L22-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1551#L22-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1552#L22-5 [2019-11-15 22:57:42,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:42,168 INFO L82 PathProgramCache]: Analyzing trace with hash 740112881, now seen corresponding path program 3 times [2019-11-15 22:57:42,168 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:42,169 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593237945] [2019-11-15 22:57:42,169 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:42,169 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:42,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:42,180 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:42,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:42,180 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 3 times [2019-11-15 22:57:42,180 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:42,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042835653] [2019-11-15 22:57:42,181 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:42,181 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:42,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:42,185 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:42,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:42,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1716089640, now seen corresponding path program 4 times [2019-11-15 22:57:42,186 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:57:42,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36316766] [2019-11-15 22:57:42,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:42,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:57:42,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:57:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:57:42,197 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:57:42,383 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-11-15 22:57:42,411 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:42,411 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:42,412 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:42,412 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:42,412 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:57:42,412 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,412 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:42,412 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:42,412 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration11_Lasso [2019-11-15 22:57:42,412 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:42,412 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:42,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:42,630 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:42,631 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,637 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,637 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,657 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,657 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,670 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,670 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:57:42,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,676 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,680 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,680 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_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,690 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,690 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,697 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,697 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,712 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,719 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,719 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:42,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:57:42,727 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:57:42,732 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d9a4d51-a3e7-41e9-827a-c4bda866edc1/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:42,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:57:42,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:57:43,641 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:57:43,643 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:57:43,643 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:57:43,643 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:57:43,643 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:57:43,643 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:57:43,643 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:57:43,643 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:57:43,643 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:57:43,643 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration11_Lasso [2019-11-15 22:57:43,644 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:57:43,644 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:57:43,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:57:43,876 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:57:43,877 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:57:43,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,877 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,877 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,877 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,877 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,878 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:43,878 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:43,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,879 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,880 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,880 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,880 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,881 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:43,881 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:43,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,883 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,883 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:43,883 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,883 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,884 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,884 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:43,884 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:43,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,885 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,885 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,885 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,885 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,886 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:43,886 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:43,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,887 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,887 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:43,887 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,887 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,887 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,888 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:43,888 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:43,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,888 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,889 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,889 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,889 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,890 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:43,891 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:43,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,893 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,893 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:43,893 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,893 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,894 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,894 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:43,894 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:43,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,895 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,895 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:43,895 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,896 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,896 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,896 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:43,896 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:43,896 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,897 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,897 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,897 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,898 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,898 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:43,898 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:43,900 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,901 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,901 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:57:43,901 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,901 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,901 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,902 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:57:43,902 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:57:43,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:57:43,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:57:43,903 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:57:43,903 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:57:43,903 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:57:43,904 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:57:43,904 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:57:43,905 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:57:43,913 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:57:43,918 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 22:57:43,919 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-11-15 22:57:43,919 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:57:43,920 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 22:57:43,920 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:57:43,920 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2019-11-15 22:57:43,934 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-15 22:57:43,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:44,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:44,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:44,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:44,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:44,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:44,045 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:44,045 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2019-11-15 22:57:44,071 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 43 transitions. Complement of second has 6 states. [2019-11-15 22:57:44,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:44,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-11-15 22:57:44,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-15 22:57:44,074 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:44,074 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:57:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:44,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:44,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:44,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:44,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:44,136 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:44,137 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2019-11-15 22:57:44,160 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 43 transitions. Complement of second has 6 states. [2019-11-15 22:57:44,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:44,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-11-15 22:57:44,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-15 22:57:44,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:44,161 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:57:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:57:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:44,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:57:44,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:57:44,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:57:44,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:57:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:57:44,227 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-15 22:57:44,228 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2019-11-15 22:57:44,263 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 38 states and 48 transitions. Complement of second has 5 states. [2019-11-15 22:57:44,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:57:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:57:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-15 22:57:44,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-15 22:57:44,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:44,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-15 22:57:44,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:44,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-15 22:57:44,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:57:44,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2019-11-15 22:57:44,266 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:57:44,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2019-11-15 22:57:44,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 22:57:44,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 22:57:44,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 22:57:44,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:57:44,267 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:57:44,267 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:57:44,267 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:57:44,267 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-11-15 22:57:44,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:57:44,267 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:57:44,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 22:57:44,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 10:57:44 BoogieIcfgContainer [2019-11-15 22:57:44,275 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 22:57:44,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:57:44,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:57:44,276 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:57:44,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:57:04" (3/4) ... [2019-11-15 22:57:44,280 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:57:44,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:57:44,282 INFO L168 Benchmark]: Toolchain (without parser) took 40423.36 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 358.6 MB). Free memory was 941.1 MB in the beginning and 1.0 GB in the end (delta: -75.2 MB). Peak memory consumption was 283.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:57:44,283 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:57:44,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:57:44,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:57:44,284 INFO L168 Benchmark]: Boogie Preprocessor took 39.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:57:44,284 INFO L168 Benchmark]: RCFGBuilder took 283.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:57:44,285 INFO L168 Benchmark]: BuchiAutomizer took 39636.43 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 222.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 86.4 MB). Peak memory consumption was 309.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:57:44,285 INFO L168 Benchmark]: Witness Printer took 5.11 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:57:44,287 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 405.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 283.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39636.43 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 222.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 86.4 MB). Peak memory consumption was 309.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.11 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (1 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.5s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 37.3s. Construction of modules took 0.2s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 20 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 52 states and ocurred in iteration 9. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 247 SDtfs, 348 SDslu, 92 SDs, 0 SdLazy, 166 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital56 mio100 ax100 hnf96 lsp39 ukn100 mio100 lsp100 div346 bol100 ite100 ukn100 eq148 hnf45 smp88 dnf100 smp100 tf102 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 194ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 28.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...