./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaA1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/PastaA1.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 1a5ad591ce856c2d846b6a372eee9518c32c9e01 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:35:46,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:35:46,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:35:46,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:35:46,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:35:46,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:35:46,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:35:46,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:35:46,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:35:46,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:35:46,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:35:46,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:35:46,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:35:46,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:35:46,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:35:46,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:35:46,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:35:46,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:35:46,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:35:46,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:35:46,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:35:46,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:35:46,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:35:46,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:35:46,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:35:46,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:35:46,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:35:46,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:35:46,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:35:46,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:35:46,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:35:46,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:35:46,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:35:46,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:35:46,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:35:46,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:35:46,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:35:46,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:35:46,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:35:46,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:35:46,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:35:46,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:35:46,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:35:46,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:35:46,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:35:46,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:35:46,993 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:35:46,994 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:35:46,994 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:35:46,998 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:35:46,998 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:35:46,998 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:35:46,999 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:35:46,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:35:46,999 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:35:46,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:35:46,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:35:46,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:35:47,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:35:47,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:35:47,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:35:47,000 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:35:47,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:35:47,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:35:47,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:35:47,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:35:47,001 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:35:47,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:35:47,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:35:47,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:35:47,003 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:35:47,004 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:35:47,005 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 -> 1a5ad591ce856c2d846b6a372eee9518c32c9e01 [2020-10-20 06:35:47,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:35:47,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:35:47,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:35:47,242 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:35:47,244 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:35:47,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaA1.c [2020-10-20 06:35:47,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef7a28a5c/772defea9ed34b0d9aa65e87fcab90f8/FLAG79a110931 [2020-10-20 06:35:47,848 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:35:47,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaA1.c [2020-10-20 06:35:47,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef7a28a5c/772defea9ed34b0d9aa65e87fcab90f8/FLAG79a110931 [2020-10-20 06:35:48,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef7a28a5c/772defea9ed34b0d9aa65e87fcab90f8 [2020-10-20 06:35:48,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:35:48,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:35:48,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:48,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:35:48,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:35:48,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f59eaa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48, skipping insertion in model container [2020-10-20 06:35:48,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:35:48,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:35:48,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:35:48,467 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:35:48,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:35:48,494 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:35:48,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48 WrapperNode [2020-10-20 06:35:48,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:48,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:35:48,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:35:48,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:35:48,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:35:48,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:35:48,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:35:48,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:35:48,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (1/1) ... [2020-10-20 06:35:48,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:35:48,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:35:48,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:35:48,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:35:48,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (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 [2020-10-20 06:35:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:35:48,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:35:48,770 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:35:48,770 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 06:35:48,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:48 BoogieIcfgContainer [2020-10-20 06:35:48,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:35:48,773 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:35:48,773 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:35:48,776 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:35:48,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:48,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:35:48" (1/3) ... [2020-10-20 06:35:48,778 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c97cdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:35:48, skipping insertion in model container [2020-10-20 06:35:48,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:48,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:48" (2/3) ... [2020-10-20 06:35:48,779 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c97cdbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:35:48, skipping insertion in model container [2020-10-20 06:35:48,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:48,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:48" (3/3) ... [2020-10-20 06:35:48,781 INFO L373 chiAutomizerObserver]: Analyzing ICFG PastaA1.c [2020-10-20 06:35:48,831 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:35:48,832 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:35:48,832 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:35:48,832 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:35:48,832 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:35:48,832 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:35:48,832 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:35:48,833 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:35:48,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-20 06:35:48,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:35:48,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:48,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:48,872 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:48,872 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:35:48,873 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:35:48,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-20 06:35:48,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:35:48,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:48,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:48,874 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:48,874 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:35:48,880 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2020-10-20 06:35:48,881 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~x~0 > 0);main_~y~0 := 0; 3#L12-2true assume !(main_~y~0 < main_~x~0); 10#L12-3true main_~x~0 := main_~x~0 - 1; 8#L10-2true [2020-10-20 06:35:48,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:48,886 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:35:48,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:48,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799522611] [2020-10-20 06:35:48,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:48,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:48,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:48,988 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:48,989 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-10-20 06:35:48,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:48,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459067694] [2020-10-20 06:35:48,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:35:49,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459067694] [2020-10-20 06:35:49,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:35:49,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:35:49,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781918437] [2020-10-20 06:35:49,073 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 06:35:49,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:35:49,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:35:49,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:35:49,125 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-10-20 06:35:49,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:35:49,179 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-10-20 06:35:49,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:35:49,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2020-10-20 06:35:49,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:35:49,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2020-10-20 06:35:49,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-10-20 06:35:49,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-10-20 06:35:49,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2020-10-20 06:35:49,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:35:49,191 INFO L691 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-10-20 06:35:49,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2020-10-20 06:35:49,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-10-20 06:35:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 06:35:49,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2020-10-20 06:35:49,216 INFO L714 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-10-20 06:35:49,217 INFO L594 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-10-20 06:35:49,217 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:35:49,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2020-10-20 06:35:49,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:35:49,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:49,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:49,218 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:49,218 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:35:49,219 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 29#L10-2 [2020-10-20 06:35:49,219 INFO L796 eck$LassoCheckResult]: Loop: 29#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 26#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 27#L12-2 assume !(main_~y~0 < main_~x~0); 30#L12-3 main_~x~0 := main_~x~0 - 1; 29#L10-2 [2020-10-20 06:35:49,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:49,220 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2020-10-20 06:35:49,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:49,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371236692] [2020-10-20 06:35:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:49,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:49,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:49,228 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:49,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:49,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2020-10-20 06:35:49,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:49,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911816250] [2020-10-20 06:35:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:49,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:49,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:49,248 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:49,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:49,249 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2020-10-20 06:35:49,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:49,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330519380] [2020-10-20 06:35:49,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:49,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:49,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:49,280 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:49,370 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:35:49,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:35:49,372 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:35:49,372 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:35:49,372 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:35:49,373 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:49,373 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:35:49,373 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:35:49,373 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2020-10-20 06:35:49,373 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:35:49,374 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:35:49,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:49,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:49,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:49,533 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:35:49,534 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) [2020-10-20 06:35:49,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:49,560 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 [2020-10-20 06:35:49,574 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:35:49,574 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:49,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:49,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:35:49,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:35:49,629 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 [2020-10-20 06:35:49,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:49,668 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:49,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:35:49,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:35:49,729 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:35:49,731 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:35:49,732 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:35:49,732 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:35:49,732 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:35:49,732 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:35:49,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:49,733 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:35:49,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:35:49,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2020-10-20 06:35:49,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:35:49,734 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:35:49,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:49,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:49,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:49,838 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:35:49,843 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) [2020-10-20 06:35:49,851 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 [2020-10-20 06:35:49,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:49,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:49,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:49,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:35:49,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:35:49,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:49,867 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) [2020-10-20 06:35:49,906 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 [2020-10-20 06:35:49,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:49,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:49,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:49,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:49,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:35:49,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:35:49,917 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) [2020-10-20 06:35:49,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:49,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:49,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:35:49,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:49,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:49,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:35:49,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:35:49,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:35:49,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:35:49,974 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:35:49,974 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) [2020-10-20 06:35:49,988 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:35:49,988 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:35:49,989 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:35:49,989 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 [2020-10-20 06:35:50,018 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:35:50,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:50,049 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:35:50,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:50,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:35:50,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:35:50,081 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:35:50,082 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-10-20 06:35:50,126 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 9 states and 12 transitions. Complement of second has 4 states. [2020-10-20 06:35:50,127 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 [2020-10-20 06:35:50,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:35:50,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-20 06:35:50,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2020-10-20 06:35:50,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:50,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-20 06:35:50,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:50,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2020-10-20 06:35:50,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:50,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2020-10-20 06:35:50,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:35:50,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2020-10-20 06:35:50,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-20 06:35:50,155 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-20 06:35:50,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-10-20 06:35:50,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:35:50,156 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-10-20 06:35:50,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-10-20 06:35:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-10-20 06:35:50,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:35:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-10-20 06:35:50,164 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:35:50,164 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:35:50,164 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:35:50,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-10-20 06:35:50,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:35:50,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:50,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:50,166 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 06:35:50,166 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:35:50,167 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 79#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 75#L12-2 [2020-10-20 06:35:50,167 INFO L796 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 75#L12-2 [2020-10-20 06:35:50,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:50,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-20 06:35:50,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:50,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665189679] [2020-10-20 06:35:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:50,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:50,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:50,186 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:50,190 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-20 06:35:50,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:50,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389227937] [2020-10-20 06:35:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:50,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:50,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:50,222 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:50,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:50,223 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-10-20 06:35:50,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:50,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843664251] [2020-10-20 06:35:50,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:50,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:50,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:50,249 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:50,268 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:35:50,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:35:50,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:35:50,268 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:35:50,268 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:35:50,268 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,268 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:35:50,268 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:35:50,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2020-10-20 06:35:50,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:35:50,269 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:35:50,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:50,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:50,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:50,336 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:35:50,337 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,345 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:50,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:35:50,350 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:35:50,350 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:50,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:35:50,401 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:35:50,401 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:35:50,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:50,446 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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) [2020-10-20 06:35:50,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:35:50,504 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,708 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:35:50,711 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:35:50,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:35:50,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:35:50,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:35:50,712 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:35:50,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:35:50,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:35:50,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2020-10-20 06:35:50,719 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:35:50,719 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:35:50,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:50,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:50,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:50,788 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:35:50,789 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 06:35:50,801 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 [2020-10-20 06:35:50,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:50,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:50,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:50,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:35:50,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:35:50,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:35:50,864 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 [2020-10-20 06:35:50,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:50,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:50,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:50,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:35:50,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:35:50,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,923 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 [2020-10-20 06:35:50,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:50,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:35:50,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:50,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:50,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:35:50,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:35:50,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:35:50,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:35:50,935 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:35:50,935 INFO L444 ModelExtractionUtils]: 0 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:50,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:35:50,938 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:35:50,938 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:35:50,938 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-10-20 06:35:50,959 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:35:50,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:50,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:35:50,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:50,997 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:35:50,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:35:50,998 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 [2020-10-20 06:35:50,998 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-10-20 06:35:51,016 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2020-10-20 06:35:51,017 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 [2020-10-20 06:35:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:35:51,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-20 06:35:51,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-20 06:35:51,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:51,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-20 06:35:51,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:51,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-20 06:35:51,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:51,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2020-10-20 06:35:51,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:35:51,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2020-10-20 06:35:51,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-20 06:35:51,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-10-20 06:35:51,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2020-10-20 06:35:51,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:35:51,028 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-10-20 06:35:51,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2020-10-20 06:35:51,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2020-10-20 06:35:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:35:51,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-10-20 06:35:51,033 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-10-20 06:35:51,033 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-10-20 06:35:51,033 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:35:51,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-10-20 06:35:51,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:35:51,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:51,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:51,038 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-10-20 06:35:51,038 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:35:51,038 INFO L794 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 130#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 127#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 128#L12-2 assume !(main_~y~0 < main_~x~0); 132#L12-3 main_~x~0 := main_~x~0 - 1; 131#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 126#L12-2 [2020-10-20 06:35:51,038 INFO L796 eck$LassoCheckResult]: Loop: 126#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 126#L12-2 [2020-10-20 06:35:51,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:51,039 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2020-10-20 06:35:51,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:51,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491339013] [2020-10-20 06:35:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:35:51,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491339013] [2020-10-20 06:35:51,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094131352] [2020-10-20 06:35:51,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:35:51,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:35:51,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:35:51,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:35:51,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:35:51,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:35:51,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-20 06:35:51,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036017958] [2020-10-20 06:35:51,187 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:35:51,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:51,187 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-10-20 06:35:51,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:51,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991753852] [2020-10-20 06:35:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:51,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:51,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:51,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:51,209 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:35:51,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:35:51,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:35:51,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:35:51,209 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:35:51,210 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,210 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:35:51,210 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:35:51,210 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2020-10-20 06:35:51,210 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:35:51,210 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:35:51,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:51,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:51,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:51,255 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:35:51,255 INFO L404 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:51,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:35:51,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:35:51,263 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:51,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:35:51,296 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:35:51,296 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:35:51,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:51,319 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:35:51,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:35:51,496 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:35:51,500 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:35:51,500 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:35:51,500 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:35:51,500 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:35:51,500 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:35:51,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,500 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:35:51,500 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:35:51,500 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2020-10-20 06:35:51,501 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:35:51,501 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:35:51,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:51,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:51,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:51,560 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:35:51,561 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:35:51,572 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 [2020-10-20 06:35:51,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:51,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:51,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:51,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:35:51,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:35:51,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,582 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,609 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 [2020-10-20 06:35:51,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:51,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:51,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:51,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:35:51,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:35:51,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:35:51,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,642 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 [2020-10-20 06:35:51,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:51,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:35:51,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:35:51,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:35:51,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:35:51,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:35:51,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:35:51,648 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:35:51,654 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 06:35:51,654 INFO L444 ModelExtractionUtils]: 0 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:51,657 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:35:51,657 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:35:51,657 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:35:51,657 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-10-20 06:35:51,678 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:35:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:51,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:35:51,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:51,712 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:35:51,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:35:51,713 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 [2020-10-20 06:35:51,713 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-20 06:35:51,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2020-10-20 06:35:51,749 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 [2020-10-20 06:35:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:35:51,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-20 06:35:51,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-20 06:35:51,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:51,750 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:35:51,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:51,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:35:51,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:51,796 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:35:51,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:35:51,797 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-20 06:35:51,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-20 06:35:51,815 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2020-10-20 06:35:51,818 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 [2020-10-20 06:35:51,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:35:51,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-10-20 06:35:51,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-20 06:35:51,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:51,819 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:35:51,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:51,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:35:51,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:51,844 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:35:51,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:35:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:35:51,845 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-20 06:35:51,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-20 06:35:51,862 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2020-10-20 06:35:51,863 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 [2020-10-20 06:35:51,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:35:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-10-20 06:35:51,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2020-10-20 06:35:51,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:51,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2020-10-20 06:35:51,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:51,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-20 06:35:51,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:35:51,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2020-10-20 06:35:51,867 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:35:51,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-10-20 06:35:51,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:35:51,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:35:51,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:35:51,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:35:51,867 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:35:51,867 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:35:51,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:35:51,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:35:51,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:35:51,868 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 6 states. [2020-10-20 06:35:51,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:35:51,868 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-20 06:35:51,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 06:35:51,869 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-20 06:35:51,869 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:35:51,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 06:35:51,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:35:51,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:35:51,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:35:51,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:35:51,869 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:35:51,869 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:35:51,869 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:35:51,870 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 06:35:51,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:35:51,870 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:35:51,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:35:51,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:35:51 BoogieIcfgContainer [2020-10-20 06:35:51,878 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:35:51,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:35:51,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:35:51,879 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:35:51,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:48" (3/4) ... [2020-10-20 06:35:51,883 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:35:51,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:35:51,885 INFO L168 Benchmark]: Toolchain (without parser) took 3644.52 ms. Allocated memory was 39.8 MB in the beginning and 49.3 MB in the end (delta: 9.4 MB). Free memory was 18.0 MB in the beginning and 16.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:51,886 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 30.9 MB. Free memory is still 7.4 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:35:51,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.55 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 17.1 MB in the beginning and 18.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:51,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.49 ms. Allocated memory is still 40.9 MB. Free memory was 18.3 MB in the beginning and 17.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:51,888 INFO L168 Benchmark]: Boogie Preprocessor took 22.58 ms. Allocated memory is still 40.9 MB. Free memory was 17.0 MB in the beginning and 15.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:51,889 INFO L168 Benchmark]: RCFGBuilder took 223.63 ms. Allocated memory was 40.9 MB in the beginning and 42.5 MB in the end (delta: 1.6 MB). Free memory was 15.7 MB in the beginning and 21.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:51,890 INFO L168 Benchmark]: BuchiAutomizer took 3105.02 ms. Allocated memory was 42.5 MB in the beginning and 49.3 MB in the end (delta: 6.8 MB). Free memory was 21.7 MB in the beginning and 16.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:35:51,891 INFO L168 Benchmark]: Witness Printer took 4.68 ms. Allocated memory is still 49.3 MB. Free memory was 16.9 MB in the beginning and 16.5 MB in the end (delta: 418.8 kB). Peak memory consumption was 418.8 kB. Max. memory is 14.3 GB. [2020-10-20 06:35:51,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 30.9 MB. Free memory is still 7.4 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 249.55 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 17.1 MB in the beginning and 18.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 30.49 ms. Allocated memory is still 40.9 MB. Free memory was 18.3 MB in the beginning and 17.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.58 ms. Allocated memory is still 40.9 MB. Free memory was 17.0 MB in the beginning and 15.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 223.63 ms. Allocated memory was 40.9 MB in the beginning and 42.5 MB in the end (delta: 1.6 MB). Free memory was 15.7 MB in the beginning and 21.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 3105.02 ms. Allocated memory was 42.5 MB in the beginning and 49.3 MB in the end (delta: 6.8 MB). Free memory was 21.7 MB in the beginning and 16.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * Witness Printer took 4.68 ms. Allocated memory is still 49.3 MB. Free memory was 16.9 MB in the beginning and 16.5 MB in the end (delta: 418.8 kB). Peak memory consumption was 418.8 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax201 hnf96 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp95 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...