./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB14.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/PastaB14.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 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:30:38,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:30:38,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:30:38,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:30:38,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:30:38,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:30:38,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:30:38,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:30:38,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:30:38,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:30:38,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:30:38,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:30:38,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:30:38,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:30:38,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:30:38,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:30:38,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:30:38,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:30:38,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:30:38,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:30:38,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:30:38,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:30:38,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:30:38,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:30:38,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:30:38,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:30:38,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:30:38,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:30:38,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:30:38,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:30:38,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:30:38,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:30:38,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:30:38,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:30:38,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:30:38,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:30:38,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:30:38,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:30:38,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:30:38,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:30:38,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:30:38,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:30:38,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:30:38,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:30:38,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:30:38,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:30:38,995 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:30:38,996 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:30:38,996 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:30:38,996 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:30:38,996 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:30:38,996 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:30:38,997 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:30:38,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:30:38,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:30:38,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:30:38,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:30:38,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:30:38,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:30:38,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:30:38,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:30:38,999 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:30:39,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:30:39,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:30:39,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:30:39,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:30:39,001 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:30:39,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:30:39,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:30:39,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:30:39,002 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:30:39,003 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:30:39,003 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 -> 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 [2020-07-29 01:30:39,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:30:39,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:30:39,350 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:30:39,352 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:30:39,353 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:30:39,354 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB14.c [2020-07-29 01:30:39,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de394bab1/29c85b7a0d9e4a0cac2ad8b09ee73c24/FLAG0e08f7a1d [2020-07-29 01:30:39,921 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:30:39,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB14.c [2020-07-29 01:30:39,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de394bab1/29c85b7a0d9e4a0cac2ad8b09ee73c24/FLAG0e08f7a1d [2020-07-29 01:30:40,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de394bab1/29c85b7a0d9e4a0cac2ad8b09ee73c24 [2020-07-29 01:30:40,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:30:40,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:30:40,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:30:40,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:30:40,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:30:40,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7922737e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40, skipping insertion in model container [2020-07-29 01:30:40,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:30:40,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:30:40,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:30:40,465 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:30:40,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:30:40,495 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:30:40,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40 WrapperNode [2020-07-29 01:30:40,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:30:40,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:30:40,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:30:40,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:30:40,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:30:40,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:30:40,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:30:40,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:30:40,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (1/1) ... [2020-07-29 01:30:40,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:30:40,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:30:40,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:30:40,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:30:40,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (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 [2020-07-29 01:30:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:30:40,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:30:40,862 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:30:40,862 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-29 01:30:40,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:40 BoogieIcfgContainer [2020-07-29 01:30:40,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:30:40,867 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:30:40,867 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:30:40,871 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:30:40,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:40,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:30:40" (1/3) ... [2020-07-29 01:30:40,873 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8c1518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:30:40, skipping insertion in model container [2020-07-29 01:30:40,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:40,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:40" (2/3) ... [2020-07-29 01:30:40,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8c1518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:30:40, skipping insertion in model container [2020-07-29 01:30:40,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:40,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:40" (3/3) ... [2020-07-29 01:30:40,877 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaB14.c [2020-07-29 01:30:40,966 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:30:40,966 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:30:40,967 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:30:40,967 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:30:40,967 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:30:40,968 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:30:40,968 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:30:40,968 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:30:40,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:30:41,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:30:41,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:41,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:41,042 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:30:41,043 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:30:41,043 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:30:41,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:30:41,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:30:41,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:41,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:41,046 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:30:41,046 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:30:41,053 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L12-3true [2020-07-29 01:30:41,053 INFO L796 eck$LassoCheckResult]: Loop: 8#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 8#L12-3true [2020-07-29 01:30:41,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:41,058 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:30:41,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:41,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989909859] [2020-07-29 01:30:41,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:41,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:41,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:41,176 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:41,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:41,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2020-07-29 01:30:41,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:41,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338411232] [2020-07-29 01:30:41,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:41,267 INFO L280 TraceCheckUtils]: 0: Hoare triple {13#true} assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); {15#(<= 1 ULTIMATE.start_main_~y~0)} is VALID [2020-07-29 01:30:41,269 INFO L280 TraceCheckUtils]: 1: Hoare triple {15#(<= 1 ULTIMATE.start_main_~y~0)} assume !(main_~y~0 > 0); {14#false} is VALID [2020-07-29 01:30:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:41,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338411232] [2020-07-29 01:30:41,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:30:41,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-29 01:30:41,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556178468] [2020-07-29 01:30:41,280 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 01:30:41,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:30:41,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:30:41,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:30:41,302 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-07-29 01:30:41,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:41,343 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2020-07-29 01:30:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:30:41,344 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:30:41,351 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:41,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2020-07-29 01:30:41,356 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:41,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2020-07-29 01:30:41,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-29 01:30:41,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-29 01:30:41,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2020-07-29 01:30:41,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:30:41,364 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-07-29 01:30:41,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2020-07-29 01:30:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-07-29 01:30:41,393 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:30:41,393 INFO L82 GeneralOperation]: Start isEquivalent. First operand 4 states and 5 transitions. Second operand 4 states. [2020-07-29 01:30:41,394 INFO L74 IsIncluded]: Start isIncluded. First operand 4 states and 5 transitions. Second operand 4 states. [2020-07-29 01:30:41,396 INFO L87 Difference]: Start difference. First operand 4 states and 5 transitions. Second operand 4 states. [2020-07-29 01:30:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:41,397 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-07-29 01:30:41,398 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 5 transitions. [2020-07-29 01:30:41,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:41,399 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:41,400 INFO L74 IsIncluded]: Start isIncluded. First operand 4 states. Second operand 4 states and 5 transitions. [2020-07-29 01:30:41,400 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 4 states and 5 transitions. [2020-07-29 01:30:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:41,401 INFO L93 Difference]: Finished difference Result 4 states and 5 transitions. [2020-07-29 01:30:41,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 5 transitions. [2020-07-29 01:30:41,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:41,402 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:41,402 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:30:41,402 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:30:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-29 01:30:41,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-07-29 01:30:41,405 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-07-29 01:30:41,406 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-07-29 01:30:41,406 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:30:41,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2020-07-29 01:30:41,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:41,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:41,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:41,408 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:30:41,408 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:30:41,408 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 27#L12-3 [2020-07-29 01:30:41,409 INFO L796 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2020-07-29 01:30:41,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:41,409 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2020-07-29 01:30:41,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:41,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994677746] [2020-07-29 01:30:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:41,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:41,417 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:41,419 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:41,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:41,420 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2020-07-29 01:30:41,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:41,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531038119] [2020-07-29 01:30:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:41,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:41,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:41,436 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:41,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:41,437 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2020-07-29 01:30:41,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:41,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621625205] [2020-07-29 01:30:41,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:41,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:41,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:41,454 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:41,542 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:41,543 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:41,543 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:41,543 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:41,544 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:30:41,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:41,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:41,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:41,545 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2020-07-29 01:30:41,545 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:41,545 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:41,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:41,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:41,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:41,805 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:41,807 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) [2020-07-29 01:30:41,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:41,815 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:41,831 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:41,831 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:41,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:41,873 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:41,882 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:41,882 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:41,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:41,921 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) [2020-07-29 01:30:41,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:41,963 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:42,014 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:30:42,016 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:42,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:42,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:42,017 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:42,017 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:30:42,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:42,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:42,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:42,017 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2020-07-29 01:30:42,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:42,018 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:42,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:42,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:42,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:42,215 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:42,221 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:42,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:42,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:42,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:42,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:42,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:42,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:42,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:42,243 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:42,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:42,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:42,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:42,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:42,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:42,279 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:42,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:42,285 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:42,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:42,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:42,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:42,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:42,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:42,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:42,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:42,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:42,342 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:30:42,349 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:30:42,349 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 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) [2020-07-29 01:30:42,363 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:30:42,364 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:30:42,364 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:30:42,365 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:42,403 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:30:42,408 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0);" "assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;" "assume !(main_~y~0 > 0);" [2020-07-29 01:30:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:42,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:42,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:42,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:42,457 INFO L280 TraceCheckUtils]: 0: Hoare triple {45#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; {45#unseeded} is VALID [2020-07-29 01:30:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:42,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:42,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:42,592 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#(>= oldRank0 ULTIMATE.start_main_~x~0)} assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); {63#(and (<= ULTIMATE.start_main_~x~0 oldRank0) (< 0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-29 01:30:42,594 INFO L280 TraceCheckUtils]: 1: Hoare triple {63#(and (<= ULTIMATE.start_main_~x~0 oldRank0) (< 0 ULTIMATE.start_main_~x~0))} assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {67#(and (<= (+ ULTIMATE.start_main_~x~0 1) oldRank0) (<= 1 oldRank0))} is VALID [2020-07-29 01:30:42,596 INFO L280 TraceCheckUtils]: 2: Hoare triple {67#(and (<= (+ ULTIMATE.start_main_~x~0 1) oldRank0) (<= 1 oldRank0))} assume !(main_~y~0 > 0); {58#(or (and (> oldRank0 ULTIMATE.start_main_~x~0) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:30:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:42,598 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-29 01:30:42,607 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:42,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:42,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,614 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-29 01:30:42,615 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2020-07-29 01:30:42,673 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2020-07-29 01:30:42,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-29 01:30:42,674 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:42,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. cyclomatic complexity: 2 [2020-07-29 01:30:42,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:42,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:42,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-29 01:30:42,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:42,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:42,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:42,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2020-07-29 01:30:42,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:42,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:42,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:42,682 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 4 states and 5 transitions. cyclomatic complexity: 2 [2020-07-29 01:30:42,683 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:30:42,683 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 4 states. [2020-07-29 01:30:42,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:30:42,685 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:42,685 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 12 states and 17 transitions. cyclomatic complexity: 7 [2020-07-29 01:30:42,686 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:42,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:42,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:42,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:42,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:42,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:42,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:42,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:42,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:42,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:42,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:42,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:42,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:42,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:42,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:42,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:42,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:42,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:42,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:42,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:30:42,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:30:42,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:30:42,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:42,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:42,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:42,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:42,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:42,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:42,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:42,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:42,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:30:42,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. cyclomatic complexity: 2 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:42,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:42,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 17 transitions. cyclomatic complexity: 7 Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:42,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,706 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:42,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-29 01:30:42,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-07-29 01:30:42,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:30:42,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:30:42,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-29 01:30:42,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:42,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. cyclomatic complexity: 7 [2020-07-29 01:30:42,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:42,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2020-07-29 01:30:42,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-29 01:30:42,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-29 01:30:42,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-07-29 01:30:42,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 01:30:42,718 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-29 01:30:42,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-07-29 01:30:42,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-07-29 01:30:42,720 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:30:42,720 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:30:42,720 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:30:42,720 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:30:42,721 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:30:42,724 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2020-07-29 01:30:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2020-07-29 01:30:42,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:42,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:42,726 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 8 states and 11 transitions. [2020-07-29 01:30:42,726 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 8 states and 11 transitions. [2020-07-29 01:30:42,727 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:30:42,728 INFO L93 Difference]: Finished difference Result 9 states and 13 transitions. [2020-07-29 01:30:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2020-07-29 01:30:42,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:42,729 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:42,730 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:30:42,730 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:30:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-29 01:30:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-29 01:30:42,731 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:30:42,732 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:30:42,732 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 01:30:42,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-29 01:30:42,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:42,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:42,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:42,733 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-07-29 01:30:42,734 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:30:42,734 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 96#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 93#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 94#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 92#L12-2 [2020-07-29 01:30:42,734 INFO L796 eck$LassoCheckResult]: Loop: 92#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 92#L12-2 [2020-07-29 01:30:42,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:42,735 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2020-07-29 01:30:42,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:42,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752295678] [2020-07-29 01:30:42,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:42,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:42,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:42,757 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:42,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:42,758 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-07-29 01:30:42,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:42,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903173711] [2020-07-29 01:30:42,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:42,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:42,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:42,769 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:42,770 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2020-07-29 01:30:42,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:42,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277043309] [2020-07-29 01:30:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:42,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:42,804 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:42,807 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:42,835 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:42,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:42,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:42,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:42,835 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:30:42,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:42,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:42,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:42,837 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2020-07-29 01:30:42,837 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:42,837 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:42,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:42,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:42,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:42,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:42,996 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:42,996 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-07-29 01:30:43,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:43,001 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,006 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:43,006 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:43,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:43,045 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:43,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:43,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:43,116 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=2}, {ULTIMATE.start_main_~x~0=-3}] Lambdas: [6, 1, 1] Nus: [0, 0] 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:43,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:43,153 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:43,153 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2020-07-29 01:30:43,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:43,180 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-07-29 01:30:43,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:43,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:43,247 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:30:43,248 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:43,248 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:43,249 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:43,249 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:43,249 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:30:43,249 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,249 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:43,249 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:43,249 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2020-07-29 01:30:43,250 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:43,250 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:43,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:43,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:43,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:43,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:30:43,400 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:43,400 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:43,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:43,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:43,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:43,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:43,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:43,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:43,425 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:43,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:43,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:43,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:43,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:43,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:43,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:43,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:43,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,486 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) [2020-07-29 01:30:43,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:43,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:43,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:43,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:43,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:43,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:43,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,556 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:43,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:30:43,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:43,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:43,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:43,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:43,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:43,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:43,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:30:43,613 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:30:43,613 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. 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) [2020-07-29 01:30:43,654 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:30:43,655 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:30:43,655 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:30:43,655 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:43,710 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:30:43,714 INFO L393 LassoCheck]: Loop: "assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;" [2020-07-29 01:30:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:43,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:43,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:43,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:43,747 INFO L280 TraceCheckUtils]: 0: Hoare triple {152#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; {152#unseeded} is VALID [2020-07-29 01:30:43,748 INFO L280 TraceCheckUtils]: 1: Hoare triple {152#unseeded} assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); {152#unseeded} is VALID [2020-07-29 01:30:43,748 INFO L280 TraceCheckUtils]: 2: Hoare triple {152#unseeded} assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {152#unseeded} is VALID [2020-07-29 01:30:43,749 INFO L280 TraceCheckUtils]: 3: Hoare triple {152#unseeded} assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {152#unseeded} is VALID [2020-07-29 01:30:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:43,754 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:43,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:43,759 INFO L280 TraceCheckUtils]: 0: Hoare triple {155#(>= oldRank0 ULTIMATE.start_main_~y~0)} assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; {165#(or (and (>= oldRank0 0) (> oldRank0 ULTIMATE.start_main_~y~0)) unseeded)} is VALID [2020-07-29 01:30:43,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:30:43,759 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:30:43,764 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:43,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:43,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,765 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 [2020-07-29 01:30:43,766 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-29 01:30:43,786 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2020-07-29 01:30:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:30:43,787 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:43,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. cyclomatic complexity: 5 [2020-07-29 01:30:43,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:43,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:43,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:30:43,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:30:43,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:43,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:43,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-07-29 01:30:43,789 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:43,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:43,790 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 7 states and 10 transitions. cyclomatic complexity: 5 [2020-07-29 01:30:43,790 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:43,790 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:30:43,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:30:43,792 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:30:43,792 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 11 states and 15 transitions. cyclomatic complexity: 6 [2020-07-29 01:30:43,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. cyclomatic complexity: 6 [2020-07-29 01:30:43,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:43,792 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:30:43,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:43,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:43,793 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:43,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:43,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:43,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:43,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:43,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:43,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:30:43,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:30:43,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:30:43,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:30:43,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:43,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:43,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:30:43,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:43,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:43,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:43,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:43,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:43,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 15 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:43,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,801 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:30:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-29 01:30:43,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:43,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2020-07-29 01:30:43,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:30:43,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:43,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. cyclomatic complexity: 6 [2020-07-29 01:30:43,806 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:43,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-29 01:30:43,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:30:43,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:30:43,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:30:43,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:30:43,807 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:43,807 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:43,807 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:30:43,808 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-29 01:30:43,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:30:43,808 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:30:43,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:30:43,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:30:43 BoogieIcfgContainer [2020-07-29 01:30:43,816 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:30:43,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:30:43,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:30:43,818 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:30:43,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:40" (3/4) ... [2020-07-29 01:30:43,823 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:30:43,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:30:43,827 INFO L168 Benchmark]: Toolchain (without parser) took 3567.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.1 MB). Free memory was 960.2 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:43,828 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:43,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.21 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:43,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:43,830 INFO L168 Benchmark]: Boogie Preprocessor took 81.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:43,831 INFO L168 Benchmark]: RCFGBuilder took 252.08 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:43,831 INFO L168 Benchmark]: BuchiAutomizer took 2949.75 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -58.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:43,832 INFO L168 Benchmark]: Witness Printer took 6.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:43,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 235.21 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 252.08 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2949.75 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -58.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 12 SDtfs, 9 SDslu, 5 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...