./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaC3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 26d01a9c 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_1.5.800.v20200727-1323.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/PastaC3.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 c651b2cf12ef151f8c483095acc3023b343707b6f3267a95c45195266139a503 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 04:17:00,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 04:17:00,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 04:17:00,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 04:17:00,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 04:17:00,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 04:17:00,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 04:17:00,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 04:17:00,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 04:17:00,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 04:17:00,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 04:17:00,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 04:17:00,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 04:17:00,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 04:17:00,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 04:17:00,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 04:17:00,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 04:17:00,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 04:17:00,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 04:17:00,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 04:17:00,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 04:17:00,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 04:17:00,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 04:17:00,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 04:17:00,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 04:17:00,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 04:17:00,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 04:17:00,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 04:17:00,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 04:17:00,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 04:17:00,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 04:17:00,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 04:17:00,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 04:17:00,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 04:17:00,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 04:17:00,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 04:17:00,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 04:17:00,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 04:17:00,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 04:17:00,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 04:17:00,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 04:17:00,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-17 04:17:00,191 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 04:17:00,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 04:17:00,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 04:17:00,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 04:17:00,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 04:17:00,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 04:17:00,194 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 04:17:00,194 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-17 04:17:00,194 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-17 04:17:00,194 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-17 04:17:00,195 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-17 04:17:00,195 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-17 04:17:00,195 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-17 04:17:00,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 04:17:00,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 04:17:00,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 04:17:00,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 04:17:00,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-17 04:17:00,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-17 04:17:00,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-17 04:17:00,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 04:17:00,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-17 04:17:00,197 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 04:17:00,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-17 04:17:00,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 04:17:00,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 04:17:00,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 04:17:00,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 04:17:00,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-17 04:17:00,199 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c651b2cf12ef151f8c483095acc3023b343707b6f3267a95c45195266139a503 [2023-02-17 04:17:00,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 04:17:00,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 04:17:00,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 04:17:00,401 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 04:17:00,401 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 04:17:00,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaC3.c [2023-02-17 04:17:01,545 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 04:17:01,699 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 04:17:01,700 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaC3.c [2023-02-17 04:17:01,704 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03fb0084b/d3e1e19fd61b44679ee622bc8b8603bb/FLAG04fc0bd7f [2023-02-17 04:17:01,718 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03fb0084b/d3e1e19fd61b44679ee622bc8b8603bb [2023-02-17 04:17:01,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 04:17:01,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 04:17:01,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 04:17:01,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 04:17:01,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 04:17:01,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ee5429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01, skipping insertion in model container [2023-02-17 04:17:01,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 04:17:01,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 04:17:01,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 04:17:01,837 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 04:17:01,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 04:17:01,853 INFO L208 MainTranslator]: Completed translation [2023-02-17 04:17:01,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01 WrapperNode [2023-02-17 04:17:01,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 04:17:01,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 04:17:01,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 04:17:01,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 04:17:01,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,874 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-17 04:17:01,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 04:17:01,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 04:17:01,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 04:17:01,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 04:17:01,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,887 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 04:17:01,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 04:17:01,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 04:17:01,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 04:17:01,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (1/1) ... [2023-02-17 04:17:01,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:01,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:01,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:01,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-17 04:17:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 04:17:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 04:17:01,998 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 04:17:01,999 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 04:17:02,043 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 04:17:02,047 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 04:17:02,047 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 04:17:02,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:17:02 BoogieIcfgContainer [2023-02-17 04:17:02,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 04:17:02,050 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-17 04:17:02,050 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-17 04:17:02,052 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-17 04:17:02,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:17:02,053 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.02 04:17:01" (1/3) ... [2023-02-17 04:17:02,054 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@638bc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 04:17:02, skipping insertion in model container [2023-02-17 04:17:02,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:17:02,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:17:01" (2/3) ... [2023-02-17 04:17:02,054 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@638bc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 04:17:02, skipping insertion in model container [2023-02-17 04:17:02,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-17 04:17:02,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:17:02" (3/3) ... [2023-02-17 04:17:02,055 INFO L332 chiAutomizerObserver]: Analyzing ICFG PastaC3.c [2023-02-17 04:17:02,090 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-17 04:17:02,090 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-17 04:17:02,091 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-17 04:17:02,091 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-17 04:17:02,091 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-17 04:17:02,091 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-17 04:17:02,091 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-17 04:17:02,091 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-17 04:17:02,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:02,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:17:02,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:17:02,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:17:02,110 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 04:17:02,110 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:17:02,110 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-17 04:17:02,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:02,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:17:02,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:17:02,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:17:02,112 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 04:17:02,112 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:17:02,118 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L14-2true [2023-02-17 04:17:02,118 INFO L750 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~x~0#1 < main_~y~0#1); 7#L14true assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1; 8#L14-2true [2023-02-17 04:17:02,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:02,124 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-17 04:17:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:02,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974725550] [2023-02-17 04:17:02,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:02,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:02,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:02,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:02,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:02,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-02-17 04:17:02,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:02,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907830490] [2023-02-17 04:17:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:02,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:02,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:02,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:02,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:02,255 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-02-17 04:17:02,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:02,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682259150] [2023-02-17 04:17:02,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:02,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:02,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:02,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:02,292 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:17:02,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:17:02,294 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:17:02,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:17:02,294 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:17:02,295 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,295 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:17:02,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:17:02,295 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2023-02-17 04:17:02,295 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:17:02,296 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:17:02,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:02,331 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:02,357 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:02,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:17:02,370 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:17:02,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:02,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:02,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-17 04:17:02,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:02,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:02,398 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:17:02,398 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: [] [2023-02-17 04:17:02,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:02,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:02,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:02,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-17 04:17:02,412 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:02,412 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:02,434 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:17:02,435 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: [] [2023-02-17 04:17:02,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-17 04:17:02,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:02,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:02,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-17 04:17:02,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:02,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:02,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:02,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:02,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:02,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-17 04:17:02,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:17:02,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:02,696 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:17:02,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:02,704 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:17:02,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:17:02,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:17:02,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:17:02,704 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:17:02,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:17:02,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:17:02,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2023-02-17 04:17:02,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:17:02,705 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:17:02,706 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:02,709 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:02,711 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:02,715 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:17:02,718 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:17:02,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:02,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:02,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-17 04:17:02,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 04:17:02,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:17:02,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:17:02,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:17:02,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:17:02,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:17:02,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:17:02,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:17:02,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-17 04:17:02,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:02,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:02,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-17 04:17:02,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 04:17:02,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:17:02,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:17:02,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:17:02,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:17:02,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:17:02,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:17:02,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:17:02,799 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:17:02,805 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 04:17:02,805 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-17 04:17:02,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:02,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:02,863 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:02,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-17 04:17:02,865 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:17:02,865 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 04:17:02,865 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:17:02,866 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-17 04:17:02,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-17 04:17:02,875 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 04:17:02,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:02,910 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:17:02,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:02,921 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:17:02,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:17:02,944 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-17 04:17:02,946 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:02,973 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 6 states. [2023-02-17 04:17:02,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-17 04:17:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-17 04:17:02,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-17 04:17:02,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:02,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-17 04:17:02,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:02,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-17 04:17:02,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:02,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2023-02-17 04:17:02,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:17:02,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2023-02-17 04:17:02,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-17 04:17:02,988 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-17 04:17:02,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-17 04:17:02,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 04:17:02,989 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-17 04:17:03,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-17 04:17:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-17 04:17:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:03,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-17 04:17:03,012 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-17 04:17:03,012 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-17 04:17:03,012 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-17 04:17:03,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-17 04:17:03,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:17:03,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:17:03,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:17:03,013 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-17 04:17:03,014 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:17:03,014 INFO L748 eck$LassoCheckResult]: Stem: 67#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 69#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 70#L14 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 71#L14-2 [2023-02-17 04:17:03,014 INFO L750 eck$LassoCheckResult]: Loop: 71#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 74#L14 assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1; 71#L14-2 [2023-02-17 04:17:03,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:03,015 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-02-17 04:17:03,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:03,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428278342] [2023-02-17 04:17:03,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:03,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:03,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-02-17 04:17:03,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:03,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826621732] [2023-02-17 04:17:03,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:03,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:03,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:03,048 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-02-17 04:17:03,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:03,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114237913] [2023-02-17 04:17:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:03,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:03,063 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:17:03,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:17:03,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:17:03,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:17:03,064 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:17:03,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:17:03,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:17:03,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2023-02-17 04:17:03,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:17:03,065 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:17:03,066 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,068 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,072 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:17:03,072 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:17:03,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,074 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-17 04:17:03,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:03,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:03,094 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:17:03,095 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: [] [2023-02-17 04:17:03,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:03,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,103 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-17 04:17:03,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:03,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:03,122 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:17:03,122 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: [] [2023-02-17 04:17:03,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:03,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,129 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:03,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:03,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-17 04:17:03,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:03,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,191 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-17 04:17:03,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:03,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:17:03,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:03,406 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:17:03,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-17 04:17:03,411 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:17:03,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:17:03,411 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:17:03,411 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:17:03,411 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:17:03,411 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,411 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:17:03,411 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:17:03,411 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2023-02-17 04:17:03,411 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:17:03,411 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:17:03,412 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,414 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,420 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:17:03,422 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:17:03,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,424 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-17 04:17:03,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 04:17:03,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:17:03,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:17:03,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:17:03,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:17:03,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:17:03,441 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:17:03,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:17:03,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:03,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,468 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-17 04:17:03,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 04:17:03,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:17:03,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:17:03,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:17:03,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:17:03,485 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:17:03,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:17:03,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:17:03,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:03,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,505 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-17 04:17:03,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 04:17:03,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:17:03,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:17:03,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:17:03,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:17:03,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:17:03,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:17:03,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:17:03,533 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:17:03,536 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 04:17:03,536 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-17 04:17:03,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,542 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-17 04:17:03,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:17:03,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 04:17:03,567 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:17:03,567 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-17 04:17:03,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-17 04:17:03,573 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 04:17:03,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:03,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:17:03,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:03,614 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:17:03,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:03,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:17:03,620 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-17 04:17:03,622 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:03,649 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 5 states. [2023-02-17 04:17:03,652 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 [2023-02-17 04:17:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:03,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-17 04:17:03,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-17 04:17:03,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:03,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-17 04:17:03,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:03,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-17 04:17:03,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:03,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-02-17 04:17:03,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:17:03,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-02-17 04:17:03,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-17 04:17:03,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-17 04:17:03,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-02-17 04:17:03,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 04:17:03,660 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-17 04:17:03,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-02-17 04:17:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-17 04:17:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:03,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-02-17 04:17:03,663 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-17 04:17:03,663 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-17 04:17:03,663 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-17 04:17:03,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2023-02-17 04:17:03,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-17 04:17:03,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:17:03,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:17:03,664 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2023-02-17 04:17:03,665 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:17:03,665 INFO L748 eck$LassoCheckResult]: Stem: 124#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 125#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 126#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 127#L14 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 128#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 133#L14 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 131#L14-2 [2023-02-17 04:17:03,666 INFO L750 eck$LassoCheckResult]: Loop: 131#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 132#L14 assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1; 131#L14-2 [2023-02-17 04:17:03,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:03,666 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2023-02-17 04:17:03,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:03,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623090409] [2023-02-17 04:17:03,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:03,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:03,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:03,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-02-17 04:17:03,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:03,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041664237] [2023-02-17 04:17:03,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:03,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:03,701 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2023-02-17 04:17:03,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:03,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490655505] [2023-02-17 04:17:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:03,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,707 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:03,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:03,715 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:17:03,715 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:17:03,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:17:03,715 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:17:03,715 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:17:03,716 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,716 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:17:03,716 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:17:03,716 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2023-02-17 04:17:03,716 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:17:03,716 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:17:03,717 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,722 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:17:03,726 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:17:03,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,728 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-17 04:17:03,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:03,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:03,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:03,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,761 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-17 04:17:03,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:17:03,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:03,948 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:17:03,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:03,955 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:17:03,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:17:03,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:17:03,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:17:03,955 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:17:03,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,955 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:17:03,955 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:17:03,955 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2023-02-17 04:17:03,955 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:17:03,955 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:17:03,956 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,961 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:03,965 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:17:03,966 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:17:03,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:03,969 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:03,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-17 04:17:03,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 04:17:03,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:17:03,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:17:03,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:17:03,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:17:03,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:17:03,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:17:03,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:17:04,013 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:17:04,016 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 04:17:04,017 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-17 04:17:04,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:04,029 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:04,058 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:17:04,058 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 04:17:04,058 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:17:04,058 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 2*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~z~0#1 + 1 Supporting invariants [] [2023-02-17 04:17:04,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-17 04:17:04,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:04,063 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 04:17:04,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:04,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:17:04,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:04,091 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:17:04,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:17:04,093 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-17 04:17:04,093 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,106 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2023-02-17 04:17:04,107 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 [2023-02-17 04:17:04,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-17 04:17:04,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-17 04:17:04,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:04,110 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-17 04:17:04,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:04,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:17:04,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:04,138 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:17:04,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:17:04,145 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-17 04:17:04,145 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,156 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2023-02-17 04:17:04,157 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 [2023-02-17 04:17:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-17 04:17:04,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-17 04:17:04,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:04,159 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-17 04:17:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:04,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:17:04,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:04,186 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:17:04,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:17:04,189 INFO L141 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 [2023-02-17 04:17:04,190 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,204 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 24 transitions. Complement of second has 4 states. [2023-02-17 04:17:04,204 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 [2023-02-17 04:17:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-17 04:17:04,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-17 04:17:04,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:04,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-17 04:17:04,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:04,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-17 04:17:04,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:04,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2023-02-17 04:17:04,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-17 04:17:04,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 20 transitions. [2023-02-17 04:17:04,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-17 04:17:04,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-17 04:17:04,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2023-02-17 04:17:04,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-17 04:17:04,213 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2023-02-17 04:17:04,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2023-02-17 04:17:04,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 6. [2023-02-17 04:17:04,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2023-02-17 04:17:04,217 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-17 04:17:04,217 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-17 04:17:04,217 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-17 04:17:04,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2023-02-17 04:17:04,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-17 04:17:04,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-17 04:17:04,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-17 04:17:04,218 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-17 04:17:04,218 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-17 04:17:04,218 INFO L748 eck$LassoCheckResult]: Stem: 278#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 279#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 280#L14-2 [2023-02-17 04:17:04,218 INFO L750 eck$LassoCheckResult]: Loop: 280#L14-2 assume !!(main_~x~0#1 < main_~y~0#1); 281#L14 assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1; 280#L14-2 [2023-02-17 04:17:04,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:04,219 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-17 04:17:04,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:04,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475924828] [2023-02-17 04:17:04,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:04,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:04,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:04,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:04,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:04,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2023-02-17 04:17:04,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:04,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700052235] [2023-02-17 04:17:04,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:04,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:04,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:04,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:04,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:04,246 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2023-02-17 04:17:04,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:17:04,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165553794] [2023-02-17 04:17:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:17:04,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:17:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:04,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 04:17:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 04:17:04,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 04:17:04,273 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:17:04,273 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:17:04,274 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:17:04,274 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:17:04,274 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-17 04:17:04,274 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,274 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:17:04,274 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:17:04,274 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2023-02-17 04:17:04,274 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:17:04,274 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:17:04,277 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:04,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:04,282 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:04,285 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:17:04,290 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-17 04:17:04,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:04,292 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:04,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-17 04:17:04,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:04,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:04,319 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:17:04,319 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 04:17:04,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-17 04:17:04,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:04,342 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:04,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-17 04:17:04,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:04,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:04,381 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-17 04:17:04,381 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-17 04:17:04,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:04,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:04,386 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:04,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-17 04:17:04,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:04,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-17 04:17:04,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-02-17 04:17:04,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:04,426 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:04,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-17 04:17:04,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-17 04:17:04,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-17 04:17:04,610 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-17 04:17:04,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-02-17 04:17:04,614 INFO L210 LassoAnalysis]: Preferences: [2023-02-17 04:17:04,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-17 04:17:04,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-17 04:17:04,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-17 04:17:04,615 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-17 04:17:04,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,615 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-17 04:17:04,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-17 04:17:04,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2023-02-17 04:17:04,615 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-17 04:17:04,615 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-17 04:17:04,616 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:04,618 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:04,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-17 04:17:04,621 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-17 04:17:04,621 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-17 04:17:04,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:04,645 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:04,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-17 04:17:04,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 04:17:04,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:17:04,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:17:04,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:17:04,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:17:04,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-17 04:17:04,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-17 04:17:04,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-17 04:17:04,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:04,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:04,710 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:04,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-17 04:17:04,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-17 04:17:04,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-17 04:17:04,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-17 04:17:04,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-17 04:17:04,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-17 04:17:04,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-17 04:17:04,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-17 04:17:04,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-17 04:17:04,740 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-17 04:17:04,743 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-17 04:17:04,743 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-17 04:17:04,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-17 04:17:04,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:17:04,746 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-17 04:17:04,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-17 04:17:04,748 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-17 04:17:04,748 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-17 04:17:04,748 INFO L513 LassoAnalysis]: Proved termination. [2023-02-17 04:17:04,748 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-17 04:17:04,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:04,762 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-17 04:17:04,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:17:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:04,774 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-17 04:17:04,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:17:04,778 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:17:04,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:17:04,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:17:04,783 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-17 04:17:04,783 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,797 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 18 transitions. Complement of second has 4 states. [2023-02-17 04:17:04,798 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 [2023-02-17 04:17:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 04:17:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-17 04:17:04,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-17 04:17:04,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:04,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-17 04:17:04,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:04,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-17 04:17:04,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-17 04:17:04,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 18 transitions. [2023-02-17 04:17:04,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 04:17:04,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-02-17 04:17:04,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-17 04:17:04,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-17 04:17:04,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-17 04:17:04,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-17 04:17:04,805 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:17:04,805 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:17:04,805 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 04:17:04,805 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-17 04:17:04,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-17 04:17:04,805 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-17 04:17:04,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-17 04:17:04,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 04:17:04 BoogieIcfgContainer [2023-02-17 04:17:04,811 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-17 04:17:04,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 04:17:04,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 04:17:04,811 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 04:17:04,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:17:02" (3/4) ... [2023-02-17 04:17:04,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 04:17:04,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 04:17:04,823 INFO L158 Benchmark]: Toolchain (without parser) took 3099.97ms. Allocated memory is still 163.6MB. Free memory was 117.4MB in the beginning and 76.5MB in the end (delta: 40.8MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2023-02-17 04:17:04,823 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 04:17:04,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 129.20ms. Allocated memory is still 163.6MB. Free memory was 117.4MB in the beginning and 108.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 04:17:04,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.00ms. Allocated memory is still 163.6MB. Free memory was 108.3MB in the beginning and 106.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 04:17:04,824 INFO L158 Benchmark]: Boogie Preprocessor took 12.34ms. Allocated memory is still 163.6MB. Free memory was 106.9MB in the beginning and 106.2MB in the end (delta: 685.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 04:17:04,824 INFO L158 Benchmark]: RCFGBuilder took 160.09ms. Allocated memory is still 163.6MB. Free memory was 106.2MB in the beginning and 97.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 04:17:04,824 INFO L158 Benchmark]: BuchiAutomizer took 2761.03ms. Allocated memory is still 163.6MB. Free memory was 97.8MB in the beginning and 77.4MB in the end (delta: 20.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-02-17 04:17:04,825 INFO L158 Benchmark]: Witness Printer took 11.20ms. Allocated memory is still 163.6MB. Free memory was 77.4MB in the beginning and 76.5MB in the end (delta: 874.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 04:17:04,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 129.20ms. Allocated memory is still 163.6MB. Free memory was 117.4MB in the beginning and 108.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.00ms. Allocated memory is still 163.6MB. Free memory was 108.3MB in the beginning and 106.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.34ms. Allocated memory is still 163.6MB. Free memory was 106.9MB in the beginning and 106.2MB in the end (delta: 685.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 160.09ms. Allocated memory is still 163.6MB. Free memory was 106.2MB in the beginning and 97.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2761.03ms. Allocated memory is still 163.6MB. Free memory was 97.8MB in the beginning and 77.4MB in the end (delta: 20.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Witness Printer took 11.20ms. Allocated memory is still 163.6MB. Free memory was 77.4MB in the beginning and 76.5MB in the end (delta: 874.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 27 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax187 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq143 hnf94 smp100 dnf100 smp100 tf110 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-17 04:17:04,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-17 04:17:05,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:05,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-17 04:17:05,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE