./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.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_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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 373a42d768821561cf3a59e950efa4caf2842fe4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:03:01,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:03:01,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:03:01,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:03:01,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:03:01,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:03:01,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:03:01,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:03:01,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:03:01,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:03:01,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:03:01,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:03:01,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:03:01,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:03:01,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:03:01,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:03:01,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:03:01,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:03:01,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:03:01,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:03:01,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:03:01,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:03:01,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:03:01,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:03:01,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:03:01,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:03:01,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:03:01,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:03:01,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:03:01,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:03:01,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:03:01,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:03:01,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:03:01,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:03:01,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:03:01,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:03:01,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:03:01,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:03:01,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:03:01,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:03:01,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:03:01,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-16 00:03:01,143 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:03:01,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:03:01,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:03:01,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:03:01,145 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:03:01,145 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-16 00:03:01,145 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-16 00:03:01,145 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-16 00:03:01,146 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-16 00:03:01,146 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-16 00:03:01,146 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-16 00:03:01,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:03:01,147 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:03:01,147 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:03:01,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:03:01,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:03:01,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:03:01,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-16 00:03:01,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-16 00:03:01,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-16 00:03:01,148 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:03:01,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:03:01,149 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-16 00:03:01,149 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:03:01,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-16 00:03:01,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:03:01,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:03:01,150 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-16 00:03:01,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:03:01,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:03:01,151 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-16 00:03:01,152 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-16 00:03:01,152 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_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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 -> 373a42d768821561cf3a59e950efa4caf2842fe4 [2019-11-16 00:03:01,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:03:01,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:03:01,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:03:01,208 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:03:01,208 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:03:01,209 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-1.c [2019-11-16 00:03:01,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/data/affc7d7db/e3a62708746844378b8e6d23a5eba95a/FLAG6acfa9780 [2019-11-16 00:03:01,733 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:03:01,734 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/sv-benchmarks/c/loops/terminator_02-1.c [2019-11-16 00:03:01,739 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/data/affc7d7db/e3a62708746844378b8e6d23a5eba95a/FLAG6acfa9780 [2019-11-16 00:03:02,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/data/affc7d7db/e3a62708746844378b8e6d23a5eba95a [2019-11-16 00:03:02,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:03:02,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:03:02,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:03:02,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:03:02,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:03:02,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37657a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02, skipping insertion in model container [2019-11-16 00:03:02,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,210 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:03:02,229 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:03:02,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:03:02,510 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:03:02,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:03:02,547 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:03:02,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02 WrapperNode [2019-11-16 00:03:02,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:03:02,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:03:02,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:03:02,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:03:02,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:03:02,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:03:02,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:03:02,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:03:02,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... [2019-11-16 00:03:02,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:03:02,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:03:02,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:03:02,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:03:02,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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 [2019-11-16 00:03:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:03:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:03:02,889 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:03:02,889 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-16 00:03:02,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:02 BoogieIcfgContainer [2019-11-16 00:03:02,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:03:02,892 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-16 00:03:02,892 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-16 00:03:02,895 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-16 00:03:02,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:03:02,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:03:02" (1/3) ... [2019-11-16 00:03:02,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7336f34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:03:02, skipping insertion in model container [2019-11-16 00:03:02,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:03:02,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:02" (2/3) ... [2019-11-16 00:03:02,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7336f34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:03:02, skipping insertion in model container [2019-11-16 00:03:02,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:03:02,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:02" (3/3) ... [2019-11-16 00:03:02,902 INFO L371 chiAutomizerObserver]: Analyzing ICFG terminator_02-1.c [2019-11-16 00:03:02,959 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-16 00:03:02,960 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-16 00:03:02,960 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-16 00:03:02,960 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:03:02,960 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:03:02,961 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-16 00:03:02,961 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:03:02,961 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-16 00:03:02,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-16 00:03:02,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:03:02,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:03:02,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:03:03,005 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-16 00:03:03,006 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:03:03,006 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-16 00:03:03,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-16 00:03:03,008 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:03:03,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:03:03,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:03:03,008 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-16 00:03:03,009 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:03:03,017 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 10#L21-2true [2019-11-16 00:03:03,018 INFO L793 eck$LassoCheckResult]: Loop: 10#L21-2true assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 3#L21true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 10#L21-2true [2019-11-16 00:03:03,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:03,026 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-16 00:03:03,035 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:03,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826405743] [2019-11-16 00:03:03,036 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:03,036 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:03,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:03,133 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:03,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:03,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-16 00:03:03,135 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:03,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430196138] [2019-11-16 00:03:03,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:03,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:03,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:03,156 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-16 00:03:03,158 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:03,159 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097836591] [2019-11-16 00:03:03,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:03,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:03,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:03,173 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:03,278 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-11-16 00:03:03,318 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:03:03,319 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:03:03,319 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:03:03,319 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:03:03,319 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-16 00:03:03,319 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:03,320 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:03:03,320 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:03:03,320 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2019-11-16 00:03:03,320 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:03:03,320 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:03:03,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:03,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:03,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:03,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:03,513 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:03:03,513 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:03,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:03,529 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 [2019-11-16 00:03:03,537 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:03:03,538 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:03,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:03,553 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 [2019-11-16 00:03:03,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:03:03,568 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-217, ULTIMATE.start_main_#t~nondet3=-217} Honda state: {ULTIMATE.start_main_~tmp~0=-217, ULTIMATE.start_main_#t~nondet3=-217} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:03,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:03,583 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_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:03,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:03:03,602 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 [2019-11-16 00:03:03,611 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-16 00:03:03,613 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:03:03,613 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:03:03,613 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:03:03,613 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:03:03,613 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:03:03,614 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:03,614 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:03:03,614 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:03:03,614 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2019-11-16 00:03:03,614 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:03:03,614 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:03:03,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:03,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:03,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:03,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:03,741 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:03:03,745 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:03:03,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:03:03,748 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:03,748 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:03,749 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:03,749 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:03,749 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:03,751 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:03,751 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:03,755 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:03:03,756 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 [2019-11-16 00:03:03,757 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:03,757 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:03,757 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:03,757 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:03,757 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:03,758 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:03,759 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:03,772 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:03:03,777 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-16 00:03:03,777 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-16 00:03:03,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:03:03,779 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-16 00:03:03,780 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:03:03,780 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-11-16 00:03:03,783 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-16 00:03:03,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:03,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:03:03,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:03,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:03:03,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:03,881 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-16 00:03:03,882 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2019-11-16 00:03:03,974 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 8 states. [2019-11-16 00:03:03,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-16 00:03:03,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:03:03,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-11-16 00:03:03,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-16 00:03:03,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:03,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-16 00:03:03,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:03,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-16 00:03:03,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:03,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-11-16 00:03:03,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:03:03,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 7 states and 10 transitions. [2019-11-16 00:03:03,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-16 00:03:03,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-16 00:03:03,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-16 00:03:03,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-16 00:03:03,995 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-16 00:03:04,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-16 00:03:04,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-16 00:03:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-16 00:03:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-16 00:03:04,019 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-16 00:03:04,019 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-16 00:03:04,019 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-16 00:03:04,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-16 00:03:04,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:03:04,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:03:04,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:03:04,020 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-16 00:03:04,021 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:03:04,021 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 87#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 82#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 83#L21-2 [2019-11-16 00:03:04,021 INFO L793 eck$LassoCheckResult]: Loop: 83#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 88#L21 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 83#L21-2 [2019-11-16 00:03:04,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:04,021 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-16 00:03:04,022 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:04,022 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537192434] [2019-11-16 00:03:04,022 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,022 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,033 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:04,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:04,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-16 00:03:04,034 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:04,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90011082] [2019-11-16 00:03:04,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,043 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:04,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:04,043 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-11-16 00:03:04,043 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:04,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091408291] [2019-11-16 00:03:04,044 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,044 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,060 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:04,087 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:03:04,088 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:03:04,088 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:03:04,088 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:03:04,088 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-16 00:03:04,088 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:04,088 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:03:04,088 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:03:04,089 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2019-11-16 00:03:04,089 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:03:04,089 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:03:04,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,215 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:03:04,215 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:04,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:04,232 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 [2019-11-16 00:03:04,243 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:03:04,243 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=128, ULTIMATE.start_main_#t~nondet3=128} Honda state: {ULTIMATE.start_main_~tmp~0=128, ULTIMATE.start_main_#t~nondet3=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:04,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:04,249 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:04,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:03:04,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:03:04,264 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-16 00:03:04,267 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:03:04,267 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:03:04,267 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:03:04,267 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:03:04,267 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:03:04,267 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:04,268 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:03:04,268 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:03:04,268 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2019-11-16 00:03:04,268 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:03:04,268 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:03:04,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,373 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:03:04,374 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:03:04,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:03:04,375 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:04,375 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:04,375 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:04,375 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:04,375 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:04,376 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:04,376 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:04,381 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:03:04,385 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-16 00:03:04,385 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-16 00:03:04,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:03:04,385 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-16 00:03:04,386 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:03:04,386 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-11-16 00:03:04,386 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-16 00:03:04,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:04,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:03:04,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:04,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:03:04,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:04,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:04,448 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-16 00:03:04,448 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-16 00:03:04,471 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-11-16 00:03:04,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-16 00:03:04,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:03:04,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-16 00:03:04,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-16 00:03:04,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:04,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-16 00:03:04,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:04,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-16 00:03:04,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:04,475 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-11-16 00:03:04,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:03:04,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-11-16 00:03:04,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-16 00:03:04,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-16 00:03:04,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-11-16 00:03:04,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-16 00:03:04,477 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-16 00:03:04,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-11-16 00:03:04,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-16 00:03:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-16 00:03:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-16 00:03:04,479 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-16 00:03:04,479 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-16 00:03:04,480 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-16 00:03:04,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-11-16 00:03:04,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-16 00:03:04,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:03:04,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:03:04,481 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-11-16 00:03:04,481 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:03:04,481 INFO L791 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 141#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 136#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 137#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 144#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 142#L21-2 [2019-11-16 00:03:04,482 INFO L793 eck$LassoCheckResult]: Loop: 142#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 143#L21 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 142#L21-2 [2019-11-16 00:03:04,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:04,482 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-11-16 00:03:04,482 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:04,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805057117] [2019-11-16 00:03:04,482 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,483 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,511 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:04,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:04,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-11-16 00:03:04,512 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:04,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411294518] [2019-11-16 00:03:04,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,520 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:04,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2019-11-16 00:03:04,521 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:04,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749749702] [2019-11-16 00:03:04,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:04,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:04,549 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:04,580 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:03:04,580 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:03:04,580 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:03:04,580 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:03:04,580 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-16 00:03:04,580 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:04,581 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:03:04,581 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:03:04,581 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2019-11-16 00:03:04,581 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:03:04,581 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:03:04,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,687 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:03:04,687 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:04,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:04,709 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:04,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:03:04,729 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 [2019-11-16 00:03:04,739 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-16 00:03:04,742 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:03:04,742 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:03:04,742 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:03:04,742 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:03:04,742 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:03:04,742 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:04,743 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:03:04,743 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:03:04,743 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2019-11-16 00:03:04,743 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:03:04,743 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:03:04,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:04,868 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:03:04,868 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:03:04,869 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 [2019-11-16 00:03:04,870 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:04,870 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:04,870 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:04,870 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:04,870 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:04,871 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:04,871 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:04,884 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:03:04,888 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-16 00:03:04,894 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-16 00:03:04,894 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:03:04,894 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-16 00:03:04,895 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:03:04,895 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-11-16 00:03:04,895 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-16 00:03:04,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:04,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:03:04,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:04,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:03:04,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:04,955 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-16 00:03:04,955 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-16 00:03:04,974 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-11-16 00:03:04,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-16 00:03:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:03:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-16 00:03:04,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-16 00:03:04,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:04,976 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-16 00:03:04,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:05,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:03:05,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:05,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:03:05,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:05,035 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-16 00:03:05,035 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-16 00:03:05,052 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-11-16 00:03:05,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-16 00:03:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:03:05,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-16 00:03:05,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-16 00:03:05,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:05,054 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-16 00:03:05,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:05,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:03:05,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:05,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:03:05,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:05,098 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-16 00:03:05,098 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-16 00:03:05,121 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2019-11-16 00:03:05,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-16 00:03:05,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:03:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-16 00:03:05,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-16 00:03:05,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:05,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-16 00:03:05,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:05,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-16 00:03:05,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:05,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-11-16 00:03:05,126 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-16 00:03:05,126 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-11-16 00:03:05,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-16 00:03:05,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-16 00:03:05,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-11-16 00:03:05,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-16 00:03:05,127 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-11-16 00:03:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-11-16 00:03:05,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-11-16 00:03:05,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-16 00:03:05,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-16 00:03:05,128 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-16 00:03:05,128 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-16 00:03:05,128 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-16 00:03:05,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-11-16 00:03:05,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-16 00:03:05,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:03:05,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:03:05,129 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-16 00:03:05,129 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-16 00:03:05,129 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 284#L21-2 [2019-11-16 00:03:05,129 INFO L793 eck$LassoCheckResult]: Loop: 284#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 283#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 284#L21-2 [2019-11-16 00:03:05,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:05,130 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-16 00:03:05,130 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:05,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054613735] [2019-11-16 00:03:05,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:05,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:05,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:05,145 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:05,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:05,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2019-11-16 00:03:05,148 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:05,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690025229] [2019-11-16 00:03:05,148 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:05,148 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:05,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:05,166 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:05,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:05,169 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2019-11-16 00:03:05,169 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:05,170 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703830771] [2019-11-16 00:03:05,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:05,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:05,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:03:05,186 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:03:05,215 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:03:05,215 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:03:05,215 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:03:05,215 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:03:05,215 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-16 00:03:05,215 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:05,215 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:03:05,215 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:03:05,215 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration4_Loop [2019-11-16 00:03:05,216 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:03:05,216 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:03:05,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,322 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:03:05,322 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:05,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:05,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:03:05,340 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:03:05,341 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:05,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:05,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:03:05,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:03:05,360 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:05,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:05,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:03:05,383 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:03:05,383 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=0, ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_~tmp~0=0, ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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) [2019-11-16 00:03:05,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:05,398 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:05,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:03:05,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:03:05,420 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-16 00:03:05,420 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=99} Honda state: {ULTIMATE.start_main_~x~0=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 4, 13] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:05,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-16 00:03:05,429 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96ac9a5e-bb2d-46ab-86eb-879a60f52207/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 [2019-11-16 00:03:05,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-16 00:03:05,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-16 00:03:05,447 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-16 00:03:05,449 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:03:05,450 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:03:05,450 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:03:05,450 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:03:05,450 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:03:05,450 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:03:05,450 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:03:05,451 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:03:05,451 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration4_Loop [2019-11-16 00:03:05,451 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:03:05,451 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:03:05,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:03:05,570 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:03:05,571 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:03:05,571 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 [2019-11-16 00:03:05,572 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:05,572 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:05,572 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:05,572 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:05,572 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:05,573 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:05,573 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:05,574 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:03:05,574 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 [2019-11-16 00:03:05,575 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:05,575 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:05,575 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:05,576 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:05,576 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:05,576 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:05,576 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:05,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:03:05,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:03:05,579 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:05,579 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:05,579 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:05,580 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:05,580 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:05,581 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:05,581 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:05,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:03:05,587 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 [2019-11-16 00:03:05,589 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:05,589 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:05,589 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:05,590 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:05,590 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:05,592 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:05,592 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:05,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:03:05,597 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 [2019-11-16 00:03:05,598 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:03:05,598 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:03:05,598 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:03:05,598 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:03:05,598 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:03:05,599 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:03:05,599 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:03:05,602 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:03:05,617 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-16 00:03:05,617 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-16 00:03:05,618 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:03:05,618 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-16 00:03:05,618 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:03:05,618 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-11-16 00:03:05,619 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-16 00:03:05,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:05,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:03:05,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:05,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:03:05,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:05,674 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-16 00:03:05,675 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-11-16 00:03:05,683 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2019-11-16 00:03:05,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-16 00:03:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:03:05,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-16 00:03:05,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-16 00:03:05,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:05,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-16 00:03:05,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:05,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-16 00:03:05,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:03:05,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2019-11-16 00:03:05,686 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:03:05,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-16 00:03:05,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-16 00:03:05,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-16 00:03:05,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-16 00:03:05,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-16 00:03:05,687 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:03:05,687 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:03:05,687 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:03:05,687 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-16 00:03:05,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:03:05,687 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:03:05,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-16 00:03:05,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:03:05 BoogieIcfgContainer [2019-11-16 00:03:05,694 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-16 00:03:05,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:03:05,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:03:05,697 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:03:05,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:02" (3/4) ... [2019-11-16 00:03:05,706 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:03:05,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:03:05,707 INFO L168 Benchmark]: Toolchain (without parser) took 3513.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.5 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -249.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:03:05,707 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:03:05,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:03:05,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.79 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:03:05,709 INFO L168 Benchmark]: Boogie Preprocessor took 27.31 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. [2019-11-16 00:03:05,709 INFO L168 Benchmark]: RCFGBuilder took 274.92 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:03:05,710 INFO L168 Benchmark]: BuchiAutomizer took 2803.08 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -92.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:03:05,710 INFO L168 Benchmark]: Witness Printer took 11.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:03:05,713 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.79 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.31 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. * RCFGBuilder took 274.92 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2803.08 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -92.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 11.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 21 SDslu, 13 SDs, 0 SdLazy, 41 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div444 bol100 ite100 ukn100 eq150 hnf48 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...