./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 90c8922c67b3eb8c55716b63a408098d1b23a21e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:31:51,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:31:51,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:31:51,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:31:51,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:31:51,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:31:51,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:31:51,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:31:51,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:31:51,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:31:51,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:31:51,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:31:51,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:31:51,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:31:51,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:31:51,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:31:51,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:31:51,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:31:51,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:31:52,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:31:52,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:31:52,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:31:52,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:31:52,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:31:52,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:31:52,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:31:52,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:31:52,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:31:52,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:31:52,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:31:52,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:31:52,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:31:52,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:31:52,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:31:52,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:31:52,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:31:52,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:31:52,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:31:52,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:31:52,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:31:52,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:31:52,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:31:52,034 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:31:52,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:31:52,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:31:52,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:31:52,035 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:31:52,036 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:31:52,036 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:31:52,036 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:31:52,036 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:31:52,036 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:31:52,037 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:31:52,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:31:52,037 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:31:52,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:31:52,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:31:52,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:31:52,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:31:52,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:31:52,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:31:52,039 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:31:52,039 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:31:52,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:31:52,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:31:52,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:31:52,040 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:31:52,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:31:52,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:31:52,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:31:52,041 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:31:52,041 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:31:52,042 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90c8922c67b3eb8c55716b63a408098d1b23a21e [2019-11-28 20:31:52,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:31:52,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:31:52,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:31:52,451 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:31:52,451 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:31:52,452 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2019-11-28 20:31:52,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de5a67e4/472028f4526e4c48a0177d7a2e6882f5/FLAGafc0b9d71 [2019-11-28 20:31:52,998 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:31:52,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2019-11-28 20:31:53,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de5a67e4/472028f4526e4c48a0177d7a2e6882f5/FLAGafc0b9d71 [2019-11-28 20:31:53,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de5a67e4/472028f4526e4c48a0177d7a2e6882f5 [2019-11-28 20:31:53,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:31:53,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:31:53,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:31:53,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:31:53,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:31:53,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65159f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53, skipping insertion in model container [2019-11-28 20:31:53,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:31:53,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:31:53,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:31:53,655 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:31:53,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:31:53,688 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:31:53,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53 WrapperNode [2019-11-28 20:31:53,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:31:53,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:31:53,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:31:53,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:31:53,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:31:53,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:31:53,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:31:53,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:31:53,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... [2019-11-28 20:31:53,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:31:53,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:31:53,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:31:53,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:31:53,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:31:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:31:53,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:31:54,033 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:31:54,033 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 20:31:54,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:54 BoogieIcfgContainer [2019-11-28 20:31:54,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:31:54,036 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:31:54,036 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:31:54,039 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:31:54,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:54,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:31:53" (1/3) ... [2019-11-28 20:31:54,041 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ec11271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:31:54, skipping insertion in model container [2019-11-28 20:31:54,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:54,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:53" (2/3) ... [2019-11-28 20:31:54,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ec11271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:31:54, skipping insertion in model container [2019-11-28 20:31:54,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:54,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:54" (3/3) ... [2019-11-28 20:31:54,044 INFO L371 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv.c [2019-11-28 20:31:54,097 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:31:54,097 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:31:54,097 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:31:54,097 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:31:54,098 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:31:54,098 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:31:54,098 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:31:54,098 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:31:54,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-28 20:31:54,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:31:54,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:54,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:54,138 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:54,138 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:31:54,138 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:31:54,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-28 20:31:54,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:31:54,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:54,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:54,140 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:54,141 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:31:54,148 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L10-2true [2019-11-28 20:31:54,148 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L12-2true assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 10#L12-3true main_~x~0 := main_~x~0 - 1; 8#L10-2true [2019-11-28 20:31:54,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:54,153 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 20:31:54,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:54,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579803246] [2019-11-28 20:31:54,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:54,266 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:54,268 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-11-28 20:31:54,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:54,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939053009] [2019-11-28 20:31:54,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:54,289 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:54,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:54,291 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2019-11-28 20:31:54,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:54,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459997680] [2019-11-28 20:31:54,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:54,307 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:54,423 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:54,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:54,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:54,424 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:54,424 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:54,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:54,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:54,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:54,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2019-11-28 20:31:54,426 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:54,426 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:54,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:54,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:54,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:54,612 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:54,613 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:54,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:54,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:54,638 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:54,638 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:54,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:54,653 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 [2019-11-28 20:31:54,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:54,663 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:54,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:54,681 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:54,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:54,704 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 [2019-11-28 20:31:54,732 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:54,738 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:54,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:54,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:54,739 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:54,739 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:54,739 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:54,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:54,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:54,740 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2019-11-28 20:31:54,740 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:54,740 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:54,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:54,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:54,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:54,882 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:54,888 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:54,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:54,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:54,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:54,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:54,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:54,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:54,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:54,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:31:54,915 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:54,920 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:31:54,921 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:54,928 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:31:54,929 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:31:54,930 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:54,930 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-11-28 20:31:54,938 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 20:31:54,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:54,995 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:54,996 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:55,010 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:55,011 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:55,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:55,051 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 [2019-11-28 20:31:55,053 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-28 20:31:55,121 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2019-11-28 20:31:55,122 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 [2019-11-28 20:31:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:31:55,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-11-28 20:31:55,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-28 20:31:55,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:55,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-28 20:31:55,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:55,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-28 20:31:55,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:55,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2019-11-28 20:31:55,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:55,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-28 20:31:55,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-28 20:31:55,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-28 20:31:55,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-28 20:31:55,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:31:55,140 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 20:31:55,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-28 20:31:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-11-28 20:31:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-28 20:31:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-11-28 20:31:55,168 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-28 20:31:55,168 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-28 20:31:55,168 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:31:55,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2019-11-28 20:31:55,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:55,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:55,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:55,170 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:31:55,170 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:31:55,170 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 74#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 70#L12-2 [2019-11-28 20:31:55,171 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 70#L12-2 [2019-11-28 20:31:55,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:55,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-28 20:31:55,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:55,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977351159] [2019-11-28 20:31:55,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:55,183 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-28 20:31:55,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:55,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474423981] [2019-11-28 20:31:55,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:55,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:55,208 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-28 20:31:55,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:55,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135374629] [2019-11-28 20:31:55,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,231 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:55,280 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:55,281 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:55,281 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:55,281 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:55,281 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:55,281 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,281 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:55,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:55,282 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2019-11-28 20:31:55,282 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:55,282 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:55,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,437 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:55,437 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:55,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:55,453 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,465 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:55,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:55,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:55,484 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,490 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:55,490 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:55,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:55,507 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 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:55,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:55,537 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,553 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:55,555 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:55,556 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:55,556 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:55,556 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:55,556 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:55,556 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,556 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:55,557 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:55,557 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2019-11-28 20:31:55,557 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:55,557 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:55,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:55,681 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:55,682 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:55,696 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 [2019-11-28 20:31:55,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:55,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:55,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:55,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:55,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:55,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:55,724 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 [2019-11-28 20:31:55,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:55,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:55,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:55,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:55,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:55,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:55,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,730 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,746 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 [2019-11-28 20:31:55,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:55,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:55,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:55,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:55,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:55,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:55,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:31:55,752 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:55,767 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 [2019-11-28 20:31:55,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:55,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:55,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:55,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:55,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:55,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:55,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:31:55,783 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 [2019-11-28 20:31:55,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:55,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:55,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:55,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:55,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:55,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:31:55,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:55,817 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-28 20:31:55,817 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:55,823 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:55,827 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 20:31:55,827 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:55,827 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2019-11-28 20:31:55,834 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 20:31:55,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:55,876 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:31:55,877 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:55,881 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:31:55,882 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:55,883 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 20:31:55,883 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-28 20:31:55,913 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2019-11-28 20:31:55,915 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 [2019-11-28 20:31:55,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 20:31:55,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-28 20:31:55,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-28 20:31:55,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:55,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-28 20:31:55,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:55,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-28 20:31:55,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:55,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2019-11-28 20:31:55,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:55,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2019-11-28 20:31:55,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-28 20:31:55,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2019-11-28 20:31:55,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2019-11-28 20:31:55,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:31:55,920 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2019-11-28 20:31:55,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2019-11-28 20:31:55,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2019-11-28 20:31:55,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-28 20:31:55,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-11-28 20:31:55,921 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-28 20:31:55,922 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-28 20:31:55,922 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:31:55,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2019-11-28 20:31:55,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:55,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:55,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:55,923 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2019-11-28 20:31:55,923 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:31:55,923 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 131#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 128#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 129#L12-3 main_~x~0 := main_~x~0 - 1; 132#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 127#L12-2 [2019-11-28 20:31:55,924 INFO L796 eck$LassoCheckResult]: Loop: 127#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 127#L12-2 [2019-11-28 20:31:55,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:55,924 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2019-11-28 20:31:55,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:55,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31213045] [2019-11-28 20:31:55,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,942 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:55,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:55,943 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2019-11-28 20:31:55,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:55,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527174325] [2019-11-28 20:31:55,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:55,961 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:55,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:55,962 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2019-11-28 20:31:55,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:55,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089877046] [2019-11-28 20:31:55,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:56,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:56,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089877046] [2019-11-28 20:31:56,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389835614] [2019-11-28 20:31:56,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:31:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:56,126 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:31:56,127 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:56,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:31:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:56,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:31:56,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-11-28 20:31:56,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298697864] [2019-11-28 20:31:56,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:31:56,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:31:56,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:31:56,199 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 7 states. [2019-11-28 20:31:56,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:31:56,272 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2019-11-28 20:31:56,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:31:56,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2019-11-28 20:31:56,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:56,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 8 states and 10 transitions. [2019-11-28 20:31:56,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 20:31:56,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-28 20:31:56,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2019-11-28 20:31:56,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:31:56,277 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-11-28 20:31:56,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2019-11-28 20:31:56,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-28 20:31:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 20:31:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-11-28 20:31:56,283 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-28 20:31:56,283 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-11-28 20:31:56,283 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:31:56,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-11-28 20:31:56,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:56,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:56,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:56,285 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2019-11-28 20:31:56,286 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:31:56,286 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 184#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 181#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 182#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 186#L12-3 main_~x~0 := main_~x~0 - 1; 185#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 180#L12-2 [2019-11-28 20:31:56,286 INFO L796 eck$LassoCheckResult]: Loop: 180#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 180#L12-2 [2019-11-28 20:31:56,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:56,287 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2019-11-28 20:31:56,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:56,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479500277] [2019-11-28 20:31:56,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,313 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:56,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:56,314 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 3 times [2019-11-28 20:31:56,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:56,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416837523] [2019-11-28 20:31:56,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,328 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:56,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:56,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1360285992, now seen corresponding path program 3 times [2019-11-28 20:31:56,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:56,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604696403] [2019-11-28 20:31:56,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:56,407 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604696403] [2019-11-28 20:31:56,407 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18768949] [2019-11-28 20:31:56,407 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 20:31:56,447 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-28 20:31:56,448 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-28 20:31:56,448 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:31:56,450 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:56,461 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 20:31:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:56,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 20:31:56,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-11-28 20:31:56,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659689684] [2019-11-28 20:31:56,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:31:56,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 20:31:56,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:31:56,494 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 8 states. [2019-11-28 20:31:56,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:31:56,574 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-28 20:31:56,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:31:56,577 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2019-11-28 20:31:56,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:56,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2019-11-28 20:31:56,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-28 20:31:56,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 20:31:56,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2019-11-28 20:31:56,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:31:56,580 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-28 20:31:56,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2019-11-28 20:31:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2019-11-28 20:31:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 20:31:56,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2019-11-28 20:31:56,583 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-11-28 20:31:56,583 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-11-28 20:31:56,583 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 20:31:56,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2019-11-28 20:31:56,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:56,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:56,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:56,585 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2019-11-28 20:31:56,586 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:31:56,586 INFO L794 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 242#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 239#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 240#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 245#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 244#L12-3 main_~x~0 := main_~x~0 - 1; 243#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 238#L12-2 [2019-11-28 20:31:56,587 INFO L796 eck$LassoCheckResult]: Loop: 238#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 238#L12-2 [2019-11-28 20:31:56,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:56,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1360231782, now seen corresponding path program 4 times [2019-11-28 20:31:56,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:56,588 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683499833] [2019-11-28 20:31:56,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,623 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:56,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:56,624 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 4 times [2019-11-28 20:31:56,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:56,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882797146] [2019-11-28 20:31:56,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,640 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:56,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:56,642 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 5 times [2019-11-28 20:31:56,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:56,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674698237] [2019-11-28 20:31:56,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:56,668 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 20:31:56,781 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:56,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:56,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:56,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:56,781 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:56,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:56,782 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:56,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:56,782 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration5_Lasso [2019-11-28 20:31:56,782 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:56,782 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:56,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:56,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:56,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:56,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:56,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:56,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:56,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:56,879 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:56,880 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:56,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:56,898 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:56,902 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:56,902 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:56,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:56,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:56,927 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:56,928 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:56,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:56,945 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:56,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:56,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:56,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:56,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:56,966 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:56,967 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:56,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:56,975 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:56,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:56,990 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,000 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:57,002 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:57,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:57,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:57,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:57,003 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:57,003 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,003 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:57,003 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:57,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration5_Lasso [2019-11-28 20:31:57,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:57,004 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:57,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:57,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:57,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:57,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:57,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:57,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:57,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:57,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:57,102 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:57,117 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 [2019-11-28 20:31:57,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:57,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:57,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:57,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:57,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:57,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:57,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,124 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:57,136 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 [2019-11-28 20:31:57,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:57,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:57,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:57,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:57,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:57,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:57,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:57,151 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 [2019-11-28 20:31:57,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:57,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:57,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:57,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:57,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:57,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:57,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:57,166 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 [2019-11-28 20:31:57,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:57,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:57,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:57,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:57,171 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:57,171 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,176 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:57,185 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 [2019-11-28 20:31:57,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:57,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:57,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:57,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:57,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:31:57,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,206 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 [2019-11-28 20:31:57,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:57,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:57,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:57,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:57,210 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:57,211 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:31:57,215 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:57,226 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 [2019-11-28 20:31:57,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:57,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:57,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:57,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:57,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:57,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,244 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:57,258 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-28 20:31:57,259 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:57,264 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:57,268 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 20:31:57,268 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:57,268 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2147483648*ULTIMATE.start_main_~y~0 + 2147483647*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2019-11-28 20:31:57,273 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 20:31:57,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:57,314 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:31:57,314 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:57,320 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:31:57,320 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:57,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:57,321 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 20:31:57,321 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-28 20:31:57,357 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2019-11-28 20:31:57,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:31:57,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 20:31:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-28 20:31:57,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-28 20:31:57,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:57,359 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:31:57,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:57,393 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:31:57,393 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:57,398 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:31:57,398 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:57,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:57,399 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 20:31:57,399 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-28 20:31:57,426 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2019-11-28 20:31:57,427 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 [2019-11-28 20:31:57,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 20:31:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-28 20:31:57,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-28 20:31:57,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:57,428 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:31:57,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:57,458 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 20:31:57,459 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:57,463 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 20:31:57,463 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:57,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:57,464 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 1 loop predicates [2019-11-28 20:31:57,464 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-28 20:31:57,500 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 13 transitions. Complement of second has 4 states. [2019-11-28 20:31:57,500 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 [2019-11-28 20:31:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 20:31:57,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-11-28 20:31:57,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2019-11-28 20:31:57,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:57,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2019-11-28 20:31:57,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:57,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 20:31:57,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:57,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2019-11-28 20:31:57,502 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:31:57,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-28 20:31:57,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:31:57,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:31:57,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:31:57,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:31:57,503 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:57,503 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:57,503 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:57,503 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 20:31:57,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:31:57,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:31:57,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:31:57,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:31:57 BoogieIcfgContainer [2019-11-28 20:31:57,509 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:31:57,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:31:57,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:31:57,509 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:31:57,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:54" (3/4) ... [2019-11-28 20:31:57,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:31:57,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:31:57,515 INFO L168 Benchmark]: Toolchain (without parser) took 4122.64 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 233.8 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -131.4 MB). Peak memory consumption was 102.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:57,516 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:57,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.93 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:57,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:57,518 INFO L168 Benchmark]: Boogie Preprocessor took 83.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -230.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:57,518 INFO L168 Benchmark]: RCFGBuilder took 227.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:57,519 INFO L168 Benchmark]: BuchiAutomizer took 3472.61 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 51.4 MB). Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 64.9 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:57,520 INFO L168 Benchmark]: Witness Printer took 4.17 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:57,524 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.93 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 182.5 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -230.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 227.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3472.61 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 51.4 MB). Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 64.9 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.17 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. One nondeterministic module has affine ranking function -2147483648 * y + 2147483647 * x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 27 SDslu, 9 SDs, 0 SdLazy, 80 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf98 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf102 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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...