./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_23.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 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/NO_23.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 cee692bfa384f30ecd519bc2dc9dfe35c80a4941 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:20:40,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:20:40,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:20:40,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:20:40,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:20:40,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:20:40,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:20:40,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:20:40,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:20:40,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:20:40,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:20:40,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:20:40,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:20:40,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:20:40,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:20:40,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:20:40,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:20:40,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:20:40,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:20:40,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:20:40,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:20:40,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:20:40,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:20:40,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:20:40,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:20:40,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:20:40,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:20:40,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:20:40,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:20:40,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:20:40,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:20:40,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:20:40,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:20:40,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:20:40,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:20:40,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:20:40,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:20:41,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:20:41,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:20:41,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:20:41,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:20:41,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 22:20:41,027 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:20:41,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:20:41,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:20:41,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:20:41,030 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:20:41,031 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:20:41,031 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:20:41,031 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:20:41,031 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:20:41,032 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:20:41,032 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:20:41,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:20:41,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:20:41,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:20:41,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:20:41,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:20:41,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:20:41,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:20:41,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:20:41,035 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:20:41,035 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:20:41,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:20:41,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:20:41,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:20:41,036 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:20:41,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:20:41,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:20:41,036 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:20:41,037 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:20:41,037 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 -> cee692bfa384f30ecd519bc2dc9dfe35c80a4941 [2019-11-19 22:20:41,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:20:41,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:20:41,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:20:41,340 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:20:41,340 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:20:41,341 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-11-19 22:20:41,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1304782/e1dd4eec850d427ba1bbbbea09be39bc/FLAGb9b60e881 [2019-11-19 22:20:41,834 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:20:41,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-11-19 22:20:41,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1304782/e1dd4eec850d427ba1bbbbea09be39bc/FLAGb9b60e881 [2019-11-19 22:20:42,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1304782/e1dd4eec850d427ba1bbbbea09be39bc [2019-11-19 22:20:42,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:20:42,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:20:42,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:20:42,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:20:42,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:20:42,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd50bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42, skipping insertion in model container [2019-11-19 22:20:42,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,244 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:20:42,259 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:20:42,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:20:42,428 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:20:42,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:20:42,456 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:20:42,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42 WrapperNode [2019-11-19 22:20:42,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:20:42,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:20:42,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:20:42,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:20:42,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:20:42,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:20:42,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:20:42,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:20:42,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (1/1) ... [2019-11-19 22:20:42,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:20:42,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:20:42,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:20:42,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:20:42,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (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 [2019-11-19 22:20:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:20:42,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:20:42,757 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:20:42,757 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 22:20:42,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:42 BoogieIcfgContainer [2019-11-19 22:20:42,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:20:42,759 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:20:42,759 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:20:42,762 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:20:42,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:42,763 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:20:42" (1/3) ... [2019-11-19 22:20:42,764 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11e673ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:20:42, skipping insertion in model container [2019-11-19 22:20:42,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:42,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:42" (2/3) ... [2019-11-19 22:20:42,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11e673ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:20:42, skipping insertion in model container [2019-11-19 22:20:42,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:42,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:42" (3/3) ... [2019-11-19 22:20:42,767 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2019-11-19 22:20:42,816 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:20:42,816 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:20:42,816 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:20:42,817 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:20:42,817 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:20:42,817 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:20:42,817 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:20:42,817 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:20:42,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-19 22:20:42,847 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:42,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:42,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:42,853 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 22:20:42,854 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:20:42,854 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:20:42,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-19 22:20:42,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:42,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:42,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:42,855 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 22:20:42,855 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:20:42,861 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L10-2true [2019-11-19 22:20:42,861 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 100); 3#L10true assume main_~i~0 < 50;main_~i~0 := 51; 7#L10-2true [2019-11-19 22:20:42,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:42,866 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-19 22:20:42,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:42,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023353148] [2019-11-19 22:20:42,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:42,950 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:42,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-19 22:20:42,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:42,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036272045] [2019-11-19 22:20:42,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:42,961 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:42,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:42,962 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-19 22:20:42,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:42,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775274634] [2019-11-19 22:20:42,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:42,974 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:43,097 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:43,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:43,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:43,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:43,099 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:20:43,099 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,099 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:43,099 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:43,100 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-11-19 22:20:43,100 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:43,100 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:43,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,330 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:43,331 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) [2019-11-19 22:20:43,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:43,341 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,352 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:20:43,353 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:43,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:20:43,369 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:20:43,369 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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:43,384 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:20:43,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:20:43,431 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:20:43,435 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:43,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:43,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:43,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:43,436 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:20:43,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:43,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:43,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-11-19 22:20:43,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:43,437 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:43,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,522 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:43,527 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) [2019-11-19 22:20:43,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:43,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:43,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:43,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:43,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:43,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:20:43,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,551 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:43,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:43,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:43,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:43,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:43,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:43,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:43,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:20:43,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,593 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:20:43,597 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 22:20:43,597 INFO L444 ModelExtractionUtils]: 0 out of 3 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,606 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:20:43,607 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 22:20:43,607 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:20:43,608 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-11-19 22:20:43,613 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 22:20:43,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:43,656 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:20:43,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:43,670 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:20:43,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:20:43,692 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 [2019-11-19 22:20:43,694 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-19 22:20:43,772 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2019-11-19 22:20:43,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:20:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:20:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-19 22:20:43,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-19 22:20:43,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:43,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-19 22:20:43,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:43,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-19 22:20:43,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:43,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-19 22:20:43,789 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:43,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-19 22:20:43,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-19 22:20:43,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-19 22:20:43,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-19 22:20:43,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:20:43,797 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-19 22:20:43,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-19 22:20:43,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-19 22:20:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-19 22:20:43,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-19 22:20:43,827 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-19 22:20:43,827 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-19 22:20:43,827 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:20:43,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-19 22:20:43,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:43,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:43,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:43,829 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 22:20:43,829 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:20:43,830 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 68#L10-2 assume !!(main_~i~0 < 100); 63#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 64#L10-2 [2019-11-19 22:20:43,830 INFO L796 eck$LassoCheckResult]: Loop: 64#L10-2 assume !!(main_~i~0 < 100); 69#L10 assume main_~i~0 < 50;main_~i~0 := 51; 64#L10-2 [2019-11-19 22:20:43,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:43,830 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-19 22:20:43,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:43,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046461939] [2019-11-19 22:20:43,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:20:43,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046461939] [2019-11-19 22:20:43,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:20:43,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 22:20:43,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740426909] [2019-11-19 22:20:43,881 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 22:20:43,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:43,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-19 22:20:43,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:43,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872730207] [2019-11-19 22:20:43,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:43,891 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:43,925 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:43,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:43,925 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:43,925 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:43,926 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:20:43,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:43,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:43,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-11-19 22:20:43,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:43,927 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:43,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:43,986 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:43,986 INFO L404 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:43,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:43,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:20:43,997 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:20:43,998 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 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:44,013 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:20:44,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:20:44,056 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:20:44,058 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:44,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:44,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:44,059 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:44,059 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:20:44,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:44,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:44,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-11-19 22:20:44,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:44,060 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:44,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,117 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:44,118 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) [2019-11-19 22:20:44,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:44,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:44,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:44,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:44,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:44,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:44,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:20:44,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,141 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:20:44,144 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 22:20:44,144 INFO L444 ModelExtractionUtils]: 0 out of 3 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:44,149 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:20:44,149 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 22:20:44,150 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:20:44,150 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-11-19 22:20:44,152 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:20:44,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,188 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:20:44,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:44,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:20:44,189 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 [2019-11-19 22:20:44,189 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-19 22:20:44,209 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-11-19 22:20:44,211 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 [2019-11-19 22:20:44,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:20:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-19 22:20:44,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-19 22:20:44,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:44,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-19 22:20:44,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:44,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-19 22:20:44,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:44,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-11-19 22:20:44,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:44,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-11-19 22:20:44,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-19 22:20:44,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-19 22:20:44,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-11-19 22:20:44,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:20:44,219 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-19 22:20:44,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-11-19 22:20:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-19 22:20:44,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-19 22:20:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-19 22:20:44,226 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-19 22:20:44,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:20:44,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:20:44,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:20:44,232 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 3 states. [2019-11-19 22:20:44,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:20:44,245 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2019-11-19 22:20:44,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:20:44,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2019-11-19 22:20:44,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:44,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2019-11-19 22:20:44,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-19 22:20:44,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-19 22:20:44,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-11-19 22:20:44,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:20:44,248 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-19 22:20:44,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-11-19 22:20:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-19 22:20:44,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-19 22:20:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2019-11-19 22:20:44,251 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-19 22:20:44,251 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-19 22:20:44,251 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:20:44,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2019-11-19 22:20:44,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:44,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:44,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:44,252 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2019-11-19 22:20:44,253 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:20:44,253 INFO L794 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 144#L10-2 assume !!(main_~i~0 < 100); 145#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 139#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 140#L10-2 assume !!(main_~i~0 < 100); 146#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 148#L10-2 [2019-11-19 22:20:44,253 INFO L796 eck$LassoCheckResult]: Loop: 148#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 148#L10-2 [2019-11-19 22:20:44,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2019-11-19 22:20:44,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:44,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230676644] [2019-11-19 22:20:44,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 22:20:44,271 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230676644] [2019-11-19 22:20:44,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:20:44,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:20:44,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713625146] [2019-11-19 22:20:44,272 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 22:20:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-11-19 22:20:44,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:44,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192504322] [2019-11-19 22:20:44,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:44,280 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:44,310 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:44,311 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:44,311 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:44,311 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:44,311 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:20:44,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:44,312 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:44,313 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-11-19 22:20:44,313 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:44,313 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:44,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,379 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:44,379 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2019-11-19 22:20:44,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:44,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:20:44,398 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 22:20:44,398 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:44,417 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2019-11-19 22:20:44,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:20:44,436 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,457 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:20:44,459 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:44,459 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:44,459 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:44,459 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:44,460 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:20:44,460 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,460 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:44,460 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:44,460 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-11-19 22:20:44,460 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:44,460 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:44,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,519 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:44,519 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-19 22:20:44,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:44,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:44,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:44,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:44,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:20:44,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:20:44,547 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:44,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:44,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:44,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:44,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:44,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:44,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:20:44,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:20:44,577 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:20:44,580 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 22:20:44,581 INFO L444 ModelExtractionUtils]: 0 out of 3 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:44,595 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:20:44,595 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 22:20:44,595 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:20:44,595 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-11-19 22:20:44,597 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:20:44,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,634 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:20:44,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:20:44,636 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 [2019-11-19 22:20:44,636 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-19 22:20:44,651 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2019-11-19 22:20:44,653 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 [2019-11-19 22:20:44,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:20:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-19 22:20:44,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-19 22:20:44,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:44,654 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:20:44,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:20:44,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,690 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:20:44,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:44,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:20:44,691 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 [2019-11-19 22:20:44,691 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-19 22:20:44,704 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2019-11-19 22:20:44,706 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 [2019-11-19 22:20:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:20:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-19 22:20:44,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-19 22:20:44,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:44,708 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:20:44,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:20:44,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:20:44,735 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:20:44,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:20:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:20:44,736 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 [2019-11-19 22:20:44,736 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-19 22:20:44,753 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2019-11-19 22:20:44,753 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 [2019-11-19 22:20:44,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:20:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-19 22:20:44,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-19 22:20:44,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:44,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-19 22:20:44,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:44,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-19 22:20:44,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:20:44,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2019-11-19 22:20:44,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:20:44,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2019-11-19 22:20:44,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-19 22:20:44,760 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-19 22:20:44,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-11-19 22:20:44,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:20:44,761 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-19 22:20:44,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-11-19 22:20:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2019-11-19 22:20:44,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 22:20:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-11-19 22:20:44,763 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-19 22:20:44,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:20:44,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:20:44,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:20:44,764 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 3 states. [2019-11-19 22:20:44,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:20:44,777 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-19 22:20:44,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:20:44,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-19 22:20:44,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-19 22:20:44,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2019-11-19 22:20:44,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-19 22:20:44,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-19 22:20:44,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2019-11-19 22:20:44,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:20:44,779 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-11-19 22:20:44,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2019-11-19 22:20:44,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2019-11-19 22:20:44,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 22:20:44,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2019-11-19 22:20:44,783 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-11-19 22:20:44,783 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-11-19 22:20:44,783 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 22:20:44,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2019-11-19 22:20:44,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:20:44,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:44,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:44,784 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 22:20:44,784 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-11-19 22:20:44,784 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 [2019-11-19 22:20:44,785 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-19 22:20:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,785 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-19 22:20:44,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:44,785 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357515680] [2019-11-19 22:20:44,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:44,796 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:44,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2019-11-19 22:20:44,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:44,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925531221] [2019-11-19 22:20:44,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:44,815 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:44,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:44,816 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2019-11-19 22:20:44,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:44,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026671661] [2019-11-19 22:20:44,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:44,838 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:44,871 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:44,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:44,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:44,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:44,872 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 22:20:44,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:44,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:44,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-11-19 22:20:44,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:44,873 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:44,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,947 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:44,947 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) [2019-11-19 22:20:44,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 22:20:44,955 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 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 [2019-11-19 22:20:44,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 22:20:44,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 22:20:44,981 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 22:20:44,983 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:20:44,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:20:44,983 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:20:44,983 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:20:44,983 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:20:44,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:44,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:20:44,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:20:44,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-11-19 22:20:44,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:20:44,984 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:20:44,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:44,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:20:45,037 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:20:45,037 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:45,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:20:45,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:20:45,061 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:45,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:20:45,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,095 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:45,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:20:45,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,108 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:20:45,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:20:45,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,131 INFO L489 LassoAnalysis]: Using template '2-nested'. 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) [2019-11-19 22:20:45,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,143 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,150 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-19 22:20:45,150 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-19 22:20:45,158 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,169 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 22:20:45,173 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-19 22:20:45,174 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,179 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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,191 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 22:20:45,193 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-19 22:20:45,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:20:45,195 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,232 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 22:20:45,237 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-19 22:20:45,237 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-19 22:20:45,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,246 INFO L489 LassoAnalysis]: Using template '3-nested'. 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) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,256 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,265 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,267 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-19 22:20:45,280 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) [2019-11-19 22:20:45,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,289 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,293 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,293 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,300 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) [2019-11-19 22:20:45,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,310 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,311 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-19 22:20:45,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,313 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,322 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,325 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,325 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,332 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,333 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,340 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-19 22:20:45,346 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-19 22:20:45,346 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,358 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,367 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-19 22:20:45,371 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-19 22:20:45,371 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,379 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,388 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-19 22:20:45,389 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-11-19 22:20:45,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,391 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:20:45,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,400 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-19 22:20:45,404 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-19 22:20:45,404 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,414 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,420 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,421 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-19 22:20:45,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,421 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 22:20:45,425 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-19 22:20:45,425 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,436 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,442 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,444 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,445 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-19 22:20:45,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,445 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 22:20:45,448 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-19 22:20:45,448 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-19 22:20:45,454 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,463 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,463 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-19 22:20:45,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,463 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 22:20:45,465 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-19 22:20:45,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,468 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,483 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,484 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-19 22:20:45,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,484 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 22:20:45,487 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-19 22:20:45,487 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-19 22:20:45,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,495 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,506 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,506 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-19 22:20:45,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,506 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,511 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,511 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,526 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,534 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,534 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-19 22:20:45,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,534 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,538 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,538 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,547 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,555 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,555 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-19 22:20:45,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,556 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,557 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-19 22:20:45,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,560 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,569 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,569 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-19 22:20:45,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,569 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,573 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,573 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,582 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,584 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,591 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,591 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-19 22:20:45,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,592 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-19 22:20:45,598 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-19 22:20:45,598 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,620 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,629 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,629 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-19 22:20:45,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,630 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-19 22:20:45,634 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-19 22:20:45,634 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,647 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,655 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,656 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-19 22:20:45,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,656 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-19 22:20:45,658 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-11-19 22:20:45,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,663 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,671 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,672 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-19 22:20:45,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,672 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-19 22:20:45,676 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-19 22:20:45,676 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,689 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,693 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,695 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,696 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-19 22:20:45,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,696 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,700 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,700 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-19 22:20:45,712 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,724 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,724 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-19 22:20:45,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,725 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,728 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,728 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,735 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,743 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,743 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-19 22:20:45,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,744 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,745 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-19 22:20:45,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,749 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,761 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,762 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-19 22:20:45,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,762 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-19 22:20:45,765 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 22:20:45,765 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,773 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,781 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,782 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-19 22:20:45,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,782 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,789 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-19 22:20:45,789 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-11-19 22:20:45,811 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,821 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,821 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-19 22:20:45,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,821 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-19 22:20:45,826 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-19 22:20:45,827 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,838 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,847 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,847 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-19 22:20:45,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:20:45,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,847 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-19 22:20:45,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:20:45,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,852 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:20:45,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:20:45,861 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-19 22:20:45,861 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-19 22:20:45,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:20:45,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:20:45,861 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-19 22:20:45,865 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-19 22:20:45,865 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:20:45,874 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 22:20:45,876 INFO L470 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2019-11-19 22:20:45,876 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-19 22:20:45,876 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-19 22:20:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:45,878 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2019-11-19 22:20:45,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:45,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585954519] [2019-11-19 22:20:45,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:45,890 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:45,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:45,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2019-11-19 22:20:45,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:45,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123324844] [2019-11-19 22:20:45,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:45,896 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:45,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:45,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2019-11-19 22:20:45,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:45,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630005301] [2019-11-19 22:20:45,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:45,906 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:45,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:20:45 BoogieIcfgContainer [2019-11-19 22:20:45,969 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:20:45,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:20:45,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:20:45,969 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:20:45,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:42" (3/4) ... [2019-11-19 22:20:45,973 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:20:46,023 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:20:46,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:20:46,029 INFO L168 Benchmark]: Toolchain (without parser) took 3801.40 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 226.0 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -62.5 MB). Peak memory consumption was 163.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:46,033 INFO L168 Benchmark]: CDTParser took 0.24 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. [2019-11-19 22:20:46,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.58 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:46,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.78 ms. Allocated memory is still 1.0 GB. Free memory is still 947.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:20:46,035 INFO L168 Benchmark]: Boogie Preprocessor took 75.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -199.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:46,035 INFO L168 Benchmark]: RCFGBuilder took 197.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:46,038 INFO L168 Benchmark]: BuchiAutomizer took 3209.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 76.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.5 MB). Peak memory consumption was 178.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:46,041 INFO L168 Benchmark]: Witness Printer took 57.85 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:46,047 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 228.58 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 947.0 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 26.78 ms. Allocated memory is still 1.0 GB. Free memory is still 947.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -199.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3209.93 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 76.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.5 MB). Peak memory consumption was 178.5 MB. Max. memory is 11.5 GB. * Witness Printer took 57.85 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. 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) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...