./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-nla/dijkstra1-both-t.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e8d55036 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-nla/dijkstra1-both-t.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 2c19e6821eec12ef8284f33ab77e3183032aa426313dfebebf501fe3b6a052c3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 23:17:14,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 23:17:14,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 23:17:14,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 23:17:14,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 23:17:14,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 23:17:14,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 23:17:14,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 23:17:14,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 23:17:14,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 23:17:14,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 23:17:14,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 23:17:14,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 23:17:14,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 23:17:14,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 23:17:14,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 23:17:14,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 23:17:14,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 23:17:14,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 23:17:14,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 23:17:14,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 23:17:14,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 23:17:14,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 23:17:14,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 23:17:14,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 23:17:14,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 23:17:14,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 23:17:14,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 23:17:14,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 23:17:14,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 23:17:14,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 23:17:14,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 23:17:14,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 23:17:14,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 23:17:14,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 23:17:14,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 23:17:14,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 23:17:14,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 23:17:14,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 23:17:14,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 23:17:14,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 23:17:14,178 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 23:17:14,207 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 23:17:14,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 23:17:14,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 23:17:14,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 23:17:14,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 23:17:14,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 23:17:14,211 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 23:17:14,211 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 23:17:14,211 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 23:17:14,212 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 23:17:14,213 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 23:17:14,213 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 23:17:14,213 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 23:17:14,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 23:17:14,213 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 23:17:14,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 23:17:14,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 23:17:14,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 23:17:14,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 23:17:14,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 23:17:14,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 23:17:14,214 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 23:17:14,214 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 23:17:14,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 23:17:14,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 23:17:14,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 23:17:14,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 23:17:14,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 23:17:14,217 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 23:17:14,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c19e6821eec12ef8284f33ab77e3183032aa426313dfebebf501fe3b6a052c3 [2023-02-15 23:17:14,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 23:17:14,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 23:17:14,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 23:17:14,432 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 23:17:14,432 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 23:17:14,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/dijkstra1-both-t.c [2023-02-15 23:17:15,424 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 23:17:15,612 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 23:17:15,613 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/dijkstra1-both-t.c [2023-02-15 23:17:15,617 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bdaf696c/52556915f4b44ad1973c7dde9582f68d/FLAG5b66a54c2 [2023-02-15 23:17:15,627 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bdaf696c/52556915f4b44ad1973c7dde9582f68d [2023-02-15 23:17:15,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 23:17:15,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 23:17:15,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 23:17:15,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 23:17:15,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 23:17:15,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549f1564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15, skipping insertion in model container [2023-02-15 23:17:15,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 23:17:15,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 23:17:15,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 23:17:15,768 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 23:17:15,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 23:17:15,785 INFO L208 MainTranslator]: Completed translation [2023-02-15 23:17:15,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15 WrapperNode [2023-02-15 23:17:15,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 23:17:15,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 23:17:15,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 23:17:15,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 23:17:15,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,806 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2023-02-15 23:17:15,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 23:17:15,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 23:17:15,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 23:17:15,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 23:17:15,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 23:17:15,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 23:17:15,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 23:17:15,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 23:17:15,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (1/1) ... [2023-02-15 23:17:15,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:15,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:15,840 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) [2023-02-15 23:17:15,846 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 [2023-02-15 23:17:15,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 23:17:15,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 23:17:15,909 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 23:17:15,912 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 23:17:15,983 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 23:17:15,987 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 23:17:15,988 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 23:17:15,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:17:15 BoogieIcfgContainer [2023-02-15 23:17:15,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 23:17:15,990 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 23:17:15,990 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 23:17:15,993 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 23:17:15,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:17:15,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 11:17:15" (1/3) ... [2023-02-15 23:17:15,994 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ad9e7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 11:17:15, skipping insertion in model container [2023-02-15 23:17:15,994 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:17:15,994 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:17:15" (2/3) ... [2023-02-15 23:17:15,995 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ad9e7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 11:17:15, skipping insertion in model container [2023-02-15 23:17:15,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 23:17:15,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:17:15" (3/3) ... [2023-02-15 23:17:15,996 INFO L332 chiAutomizerObserver]: Analyzing ICFG dijkstra1-both-t.c [2023-02-15 23:17:16,057 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 23:17:16,058 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 23:17:16,058 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 23:17:16,058 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 23:17:16,058 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 23:17:16,058 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 23:17:16,059 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 23:17:16,059 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 23:17:16,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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) [2023-02-15 23:17:16,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2023-02-15 23:17:16,082 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:17:16,082 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:17:16,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 23:17:16,085 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 23:17:16,086 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 23:17:16,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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) [2023-02-15 23:17:16,088 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2023-02-15 23:17:16,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:17:16,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:17:16,088 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 23:17:16,088 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 23:17:16,094 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L25true assume !(main_~n~0#1 >= 1073741824);main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 2#L32-2true [2023-02-15 23:17:16,094 INFO L750 eck$LassoCheckResult]: Loop: 2#L32-2true assume !!(main_~q~0#1 <= main_~n~0#1);main_~q~0#1 := 4 * main_~q~0#1; 2#L32-2true [2023-02-15 23:17:16,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:16,101 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2023-02-15 23:17:16,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:17:16,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848661017] [2023-02-15 23:17:16,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:17:16,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:17:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:16,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:17:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:16,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:17:16,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:16,199 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2023-02-15 23:17:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:17:16,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86963227] [2023-02-15 23:17:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:17:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:17:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:16,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:17:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:16,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:17:16,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:16,225 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2023-02-15 23:17:16,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:17:16,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365719575] [2023-02-15 23:17:16,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:17:16,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:17:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:16,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:17:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:16,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:17:16,319 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:17:16,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:17:16,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:17:16,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:17:16,320 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:17:16,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:16,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:17:16,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:17:16,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration1_Lasso [2023-02-15 23:17:16,325 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:17:16,325 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:17:16,351 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:16,373 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:16,376 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:16,387 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:16,390 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:16,484 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:17:16,484 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:17:16,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:16,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:16,523 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) [2023-02-15 23:17:16,525 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 [2023-02-15 23:17:16,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:17:16,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:17:16,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:17:16,547 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:17:16,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-15 23:17:16,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:16,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:16,555 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) [2023-02-15 23:17:16,558 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 [2023-02-15 23:17:16,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:17:16,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:17:16,580 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 23:17:16,581 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 23:17:16,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:16,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:16,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:16,593 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) [2023-02-15 23:17:16,594 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 [2023-02-15 23:17:16,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:17:16,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:17:16,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-15 23:17:16,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:16,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:16,660 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) [2023-02-15 23:17:16,663 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 [2023-02-15 23:17:16,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:17:16,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:17:28,835 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2023-02-15 23:17:28,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-15 23:17:28,854 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:17:28,854 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:17:28,854 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:17:28,854 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:17:28,854 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:17:28,854 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:28,854 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:17:28,854 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:17:28,854 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration1_Lasso [2023-02-15 23:17:28,854 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:17:28,854 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:17:28,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:28,862 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:28,864 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:28,867 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:28,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:28,927 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:17:28,930 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:17:28,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:28,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:28,933 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) [2023-02-15 23:17:28,934 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 [2023-02-15 23:17:28,940 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 [2023-02-15 23:17:28,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:28,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:28,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:28,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:17:28,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:17:28,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:17:28,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:28,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:28,957 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 [2023-02-15 23:17:28,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:28,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:28,960 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) [2023-02-15 23:17:28,962 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 [2023-02-15 23:17:28,965 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 [2023-02-15 23:17:28,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:28,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:28,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:28,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:17:28,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:17:28,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 23:17:28,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:28,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:28,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:28,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:28,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:28,995 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) [2023-02-15 23:17:28,997 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 [2023-02-15 23:17:28,999 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 [2023-02-15 23:17:29,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:29,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:29,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:17:29,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:17:29,010 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 23:17:29,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 23:17:29,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:29,019 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 [2023-02-15 23:17:29,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:29,021 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) [2023-02-15 23:17:29,022 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 [2023-02-15 23:17:29,024 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 [2023-02-15 23:17:29,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:29,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:29,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 23:17:29,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:17:29,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 23:17:29,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 23:17:29,053 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:17:29,060 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-02-15 23:17:29,061 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 23:17:29,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:29,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:29,120 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) [2023-02-15 23:17:29,121 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 [2023-02-15 23:17:29,122 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:17:29,143 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2023-02-15 23:17:29,144 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:17:29,144 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_~r~0#1) = -1*ULTIMATE.start_main_~q~0#1 + 1*ULTIMATE.start_main_~r~0#1 + 1 Supporting invariants [-1*ULTIMATE.start_main_~n~0#1 + 1*ULTIMATE.start_main_~r~0#1 >= 0, 3*ULTIMATE.start_main_~q~0#1 - 2 >= 0] [2023-02-15 23:17:29,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-15 23:17:29,157 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2023-02-15 23:17:29,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:17:29,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 23:17:29,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:17:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:17:29,204 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 23:17:29,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:17:29,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:17:29,227 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 [2023-02-15 23:17:29,228 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-02-15 23:17:29,294 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 30 states and 40 transitions. Complement of second has 6 states. [2023-02-15 23:17:29,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-15 23:17:29,323 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 [2023-02-15 23:17:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-02-15 23:17:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-15 23:17:29,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-15 23:17:29,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:17:29,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-15 23:17:29,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:17:29,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-15 23:17:29,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:17:29,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2023-02-15 23:17:29,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:17:29,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 8 states and 11 transitions. [2023-02-15 23:17:29,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-15 23:17:29,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 23:17:29,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-15 23:17:29,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 23:17:29,335 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 23:17:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-15 23:17:29,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-02-15 23:17:29,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2023-02-15 23:17:29,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-15 23:17:29,350 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-15 23:17:29,350 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-15 23:17:29,351 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 23:17:29,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-02-15 23:17:29,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:17:29,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:17:29,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:17:29,352 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-15 23:17:29,352 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 23:17:29,353 INFO L748 eck$LassoCheckResult]: Stem: 93#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 94#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 92#L25 assume !(main_~n~0#1 >= 1073741824);main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 88#L32-2 assume !(main_~q~0#1 <= main_~n~0#1); 90#L53-2 [2023-02-15 23:17:29,353 INFO L750 eck$LassoCheckResult]: Loop: 90#L53-2 assume !!(main_~r~0#1 >= 2 * main_~p~0#1 + main_~q~0#1);main_~q~0#1 := (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4);main_~h~0#1 := main_~p~0#1 + main_~q~0#1;main_~p~0#1 := (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2); 91#L53 assume !(main_~r~0#1 >= main_~h~0#1); 90#L53-2 [2023-02-15 23:17:29,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash 925674, now seen corresponding path program 1 times [2023-02-15 23:17:29,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:17:29,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091226187] [2023-02-15 23:17:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:17:29,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:17:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:29,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:17:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:29,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:17:29,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:29,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 1 times [2023-02-15 23:17:29,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:17:29,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087792596] [2023-02-15 23:17:29,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:17:29,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:17:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:29,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:17:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:29,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:17:29,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:29,378 INFO L85 PathProgramCache]: Analyzing trace with hash 889573583, now seen corresponding path program 1 times [2023-02-15 23:17:29,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:17:29,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782629591] [2023-02-15 23:17:29,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:17:29,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:17:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:17:29,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:17:29,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:17:29,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782629591] [2023-02-15 23:17:29,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782629591] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 23:17:29,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 23:17:29,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 23:17:29,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434894787] [2023-02-15 23:17:29,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 23:17:29,577 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:17:29,577 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:17:29,577 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:17:29,577 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:17:29,578 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:17:29,578 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:29,578 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:17:29,578 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:17:29,578 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration2_Loop [2023-02-15 23:17:29,578 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:17:29,578 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:17:29,580 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:29,833 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-02-15 23:17:30,385 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:17:30,385 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:17:30,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:30,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:30,386 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) [2023-02-15 23:17:30,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:17:30,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:17:30,401 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 [2023-02-15 23:17:30,498 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 [2023-02-15 23:17:30,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:30,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:30,500 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) [2023-02-15 23:17:30,502 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 [2023-02-15 23:17:30,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:17:30,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:17:40,106 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 23:17:40,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:40,115 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:17:40,115 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:17:40,115 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:17:40,115 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:17:40,115 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:17:40,115 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:40,115 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:17:40,115 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:17:40,115 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration2_Loop [2023-02-15 23:17:40,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:17:40,115 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:17:40,117 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:40,282 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-02-15 23:17:40,627 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:17:40,627 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:17:40,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:40,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:40,630 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) [2023-02-15 23:17:40,645 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 [2023-02-15 23:17:40,646 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 [2023-02-15 23:17:40,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:40,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:40,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:40,652 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:40,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:17:40,677 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-02-15 23:17:40,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:40,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:40,700 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 [2023-02-15 23:17:40,701 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-02-15 23:17:40,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:40,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:40,702 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) [2023-02-15 23:17:40,704 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 [2023-02-15 23:17:40,705 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 [2023-02-15 23:17:40,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:40,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:40,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:40,712 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:40,712 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-15 23:17:40,734 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2023-02-15 23:17:40,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:40,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:40,764 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 [2023-02-15 23:17:40,764 INFO L490 LassoAnalysis]: Using template '3-nested'. [2023-02-15 23:17:40,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:40,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:40,777 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) [2023-02-15 23:17:40,778 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 [2023-02-15 23:17:40,780 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 [2023-02-15 23:17:40,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:40,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:40,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:40,786 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:40,786 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-15 23:17:40,821 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2023-02-15 23:17:40,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:40,852 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:40,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:40,858 INFO L490 LassoAnalysis]: Using template '4-nested'. [2023-02-15 23:17:40,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:40,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:40,859 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) [2023-02-15 23:17:40,861 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 [2023-02-15 23:17:40,863 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 [2023-02-15 23:17:40,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:40,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:40,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:40,870 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:40,870 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-02-15 23:17:40,911 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2023-02-15 23:17:40,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:40,950 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:40,956 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 [2023-02-15 23:17:40,956 INFO L490 LassoAnalysis]: Using template '2-phase'. [2023-02-15 23:17:40,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:40,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:40,958 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) [2023-02-15 23:17:40,961 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 [2023-02-15 23:17:40,962 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 [2023-02-15 23:17:40,968 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-02-15 23:17:40,968 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-02-15 23:17:40,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:40,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:40,969 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:40,969 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-15 23:17:41,000 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2023-02-15 23:17:41,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:41,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:41,077 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 [2023-02-15 23:17:41,077 INFO L490 LassoAnalysis]: Using template '3-phase'. [2023-02-15 23:17:41,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:41,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:41,078 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) [2023-02-15 23:17:41,080 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 [2023-02-15 23:17:41,081 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 [2023-02-15 23:17:41,089 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-02-15 23:17:41,089 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2023-02-15 23:17:41,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:41,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:41,089 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:41,089 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-15 23:17:41,123 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2023-02-15 23:17:41,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:41,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:41,336 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 [2023-02-15 23:17:41,336 INFO L490 LassoAnalysis]: Using template '4-phase'. [2023-02-15 23:17:41,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:41,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:41,337 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) [2023-02-15 23:17:41,338 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 [2023-02-15 23:17:41,340 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 [2023-02-15 23:17:41,347 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-02-15 23:17:41,347 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2023-02-15 23:17:41,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:41,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:41,347 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:41,347 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-02-15 23:17:41,389 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2023-02-15 23:17:41,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:42,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:42,316 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 [2023-02-15 23:17:42,317 INFO L490 LassoAnalysis]: Using template '2-lex'. [2023-02-15 23:17:42,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:42,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:42,318 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) [2023-02-15 23:17:42,321 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 [2023-02-15 23:17:42,327 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-02-15 23:17:42,328 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-02-15 23:17:42,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:42,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:42,328 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:42,328 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-15 23:17:42,328 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 [2023-02-15 23:17:42,386 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2023-02-15 23:17:42,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:42,522 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:17:42,737 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-02-15 23:17:42,737 INFO L444 ModelExtractionUtils]: 2 out of 12 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-02-15 23:17:42,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:42,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:42,739 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) [2023-02-15 23:17:42,741 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 [2023-02-15 23:17:42,743 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:17:42,743 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 23:17:42,743 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:17:42,743 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-lexicographic ranking function: f(ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_~r~0#1, ULTIMATE.start_main_~p~0#1) = Supporting invariants [] [2023-02-15 23:17:42,749 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 [2023-02-15 23:17:42,750 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 23:17:42,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:17:42,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 23:17:42,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:17:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:17:42,775 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 23:17:42,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:17:42,928 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 [2023-02-15 23:17:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:17:46,522 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 [2023-02-15 23:17:46,522 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 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) [2023-02-15 23:17:46,564 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 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 11 states and 16 transitions. Complement of second has 5 states. [2023-02-15 23:17:46,564 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 [2023-02-15 23:17:46,565 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) [2023-02-15 23:17:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-15 23:17:46,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-15 23:17:46,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:17:46,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-15 23:17:46,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:17:46,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-15 23:17:46,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 23:17:46,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2023-02-15 23:17:46,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:17:46,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2023-02-15 23:17:46,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 23:17:46,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-15 23:17:46,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2023-02-15 23:17:46,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 23:17:46,568 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-02-15 23:17:46,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2023-02-15 23:17:46,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-15 23:17:46,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2023-02-15 23:17:46,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2023-02-15 23:17:46,570 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2023-02-15 23:17:46,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:17:46,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 23:17:46,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 23:17:46,573 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-02-15 23:17:46,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:17:46,588 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2023-02-15 23:17:46,588 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2023-02-15 23:17:46,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:17:46,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2023-02-15 23:17:46,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-15 23:17:46,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-15 23:17:46,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-15 23:17:46,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 23:17:46,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 23:17:46,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-15 23:17:46,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-15 23:17:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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) [2023-02-15 23:17:46,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-02-15 23:17:46,594 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 23:17:46,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 23:17:46,595 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 23:17:46,595 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 23:17:46,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-02-15 23:17:46,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-15 23:17:46,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 23:17:46,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 23:17:46,596 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-02-15 23:17:46,596 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-15 23:17:46,597 INFO L748 eck$LassoCheckResult]: Stem: 176#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 177#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 175#L25 assume !(main_~n~0#1 >= 1073741824);main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 170#L32-2 assume !(main_~q~0#1 <= main_~n~0#1); 172#L53-2 assume !!(main_~r~0#1 >= 2 * main_~p~0#1 + main_~q~0#1);main_~q~0#1 := (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4);main_~h~0#1 := main_~p~0#1 + main_~q~0#1;main_~p~0#1 := (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2); 178#L53 assume main_~r~0#1 >= main_~h~0#1;main_~p~0#1 := main_~p~0#1 + main_~q~0#1;main_~r~0#1 := main_~r~0#1 - main_~h~0#1; 173#L53-2 [2023-02-15 23:17:46,597 INFO L750 eck$LassoCheckResult]: Loop: 173#L53-2 assume !!(main_~r~0#1 >= 2 * main_~p~0#1 + main_~q~0#1);main_~q~0#1 := (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4);main_~h~0#1 := main_~p~0#1 + main_~q~0#1;main_~p~0#1 := (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2); 174#L53 assume !(main_~r~0#1 >= main_~h~0#1); 173#L53-2 [2023-02-15 23:17:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:46,597 INFO L85 PathProgramCache]: Analyzing trace with hash 889573581, now seen corresponding path program 1 times [2023-02-15 23:17:46,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:17:46,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806595699] [2023-02-15 23:17:46,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:17:46,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:17:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:17:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:17:46,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:17:46,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806595699] [2023-02-15 23:17:46,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806595699] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 23:17:46,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 23:17:46,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 23:17:46,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174134833] [2023-02-15 23:17:46,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 23:17:46,652 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 23:17:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 2 times [2023-02-15 23:17:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:17:46,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595004572] [2023-02-15 23:17:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:17:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:17:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:46,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 23:17:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 23:17:46,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 23:17:46,758 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:17:46,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:17:46,759 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:17:46,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:17:46,759 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 23:17:46,759 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:46,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:17:46,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:17:46,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration3_Loop [2023-02-15 23:17:46,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:17:46,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:17:46,761 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:46,967 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-02-15 23:17:47,438 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:17:47,438 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 23:17:47,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:47,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:47,457 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) [2023-02-15 23:17:47,459 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 [2023-02-15 23:17:47,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 23:17:47,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:17:47,521 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 [2023-02-15 23:17:47,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:47,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:47,523 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) [2023-02-15 23:17:47,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 23:17:47,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 23:17:47,570 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 [2023-02-15 23:17:52,500 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 23:17:52,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:52,506 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 23:17:52,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 23:17:52,506 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 23:17:52,506 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 23:17:52,506 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 23:17:52,506 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:52,506 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 23:17:52,506 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 23:17:52,506 INFO L133 ssoRankerPreferences]: Filename of dumped script: dijkstra1-both-t.c_Iteration3_Loop [2023-02-15 23:17:52,506 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 23:17:52,506 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 23:17:52,507 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 23:17:52,702 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-02-15 23:17:53,181 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 23:17:53,182 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 23:17:53,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:53,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:53,184 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) [2023-02-15 23:17:53,186 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 [2023-02-15 23:17:53,186 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 [2023-02-15 23:17:53,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:53,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:53,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:53,192 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:53,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 23:17:53,204 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-02-15 23:17:53,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:53,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:53,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:53,239 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-02-15 23:17:53,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:53,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:53,240 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) [2023-02-15 23:17:53,242 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 [2023-02-15 23:17:53,243 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 [2023-02-15 23:17:53,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:53,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:53,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:53,249 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:53,249 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-15 23:17:53,267 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2023-02-15 23:17:53,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:53,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:53,293 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 [2023-02-15 23:17:53,293 INFO L490 LassoAnalysis]: Using template '3-nested'. [2023-02-15 23:17:53,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:53,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:53,294 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) [2023-02-15 23:17:53,297 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 [2023-02-15 23:17:53,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:53,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:53,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:53,303 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:53,303 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-15 23:17:53,316 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 [2023-02-15 23:17:53,327 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2023-02-15 23:17:53,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:53,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:53,359 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 [2023-02-15 23:17:53,359 INFO L490 LassoAnalysis]: Using template '4-nested'. [2023-02-15 23:17:53,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:53,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:53,360 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) [2023-02-15 23:17:53,362 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 [2023-02-15 23:17:53,364 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 [2023-02-15 23:17:53,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 23:17:53,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:53,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:53,370 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:53,370 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-02-15 23:17:53,399 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2023-02-15 23:17:53,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:53,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:53,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:53,439 INFO L490 LassoAnalysis]: Using template '2-phase'. [2023-02-15 23:17:53,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:53,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:53,453 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-02-15 23:17:53,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-15 23:17:53,474 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 [2023-02-15 23:17:53,479 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-02-15 23:17:53,480 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-02-15 23:17:53,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:53,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:53,480 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:53,480 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-15 23:17:53,500 INFO L401 nArgumentSynthesizer]: We have 24 Motzkin's Theorem applications. [2023-02-15 23:17:53,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:53,578 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:53,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:53,581 INFO L490 LassoAnalysis]: Using template '3-phase'. [2023-02-15 23:17:53,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:53,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:53,588 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-02-15 23:17:53,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-15 23:17:53,601 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 [2023-02-15 23:17:53,607 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-02-15 23:17:53,607 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2023-02-15 23:17:53,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:53,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:53,607 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:53,607 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-15 23:17:53,636 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2023-02-15 23:17:53,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:54,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:54,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:54,200 INFO L490 LassoAnalysis]: Using template '4-phase'. [2023-02-15 23:17:54,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:54,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:54,201 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-02-15 23:17:54,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-15 23:17:54,204 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 [2023-02-15 23:17:54,211 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-02-15 23:17:54,211 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2023-02-15 23:17:54,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:54,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:54,211 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:54,211 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-02-15 23:17:54,259 INFO L401 nArgumentSynthesizer]: We have 40 Motzkin's Theorem applications. [2023-02-15 23:17:54,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:55,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 23:17:55,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:55,595 INFO L490 LassoAnalysis]: Using template '2-lex'. [2023-02-15 23:17:55,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:55,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:55,596 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-02-15 23:17:55,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-15 23:17:55,599 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 [2023-02-15 23:17:55,605 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-02-15 23:17:55,605 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-02-15 23:17:55,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 23:17:55,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 23:17:55,606 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2023-02-15 23:17:55,606 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-15 23:17:55,634 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2023-02-15 23:17:55,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 23:17:55,703 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 23:17:55,778 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-02-15 23:17:55,778 INFO L444 ModelExtractionUtils]: 3 out of 12 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 23:17:55,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 23:17:55,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:17:55,779 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-02-15 23:17:55,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-15 23:17:55,783 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 23:17:55,783 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 23:17:55,783 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 23:17:55,783 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-lexicographic ranking function: f(ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~r~0#1, ULTIMATE.start_main_~q~0#1) = Supporting invariants [] [2023-02-15 23:17:55,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-15 23:17:55,790 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 23:17:55,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:17:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:17:55,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 23:17:55,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:17:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:17:55,817 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 23:17:55,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:17:56,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-15 23:19:38,248 WARN L233 SmtUtils]: Spent 1.66m on a formula simplification. DAG size of input: 25050 DAG size of output: 23287 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 23:20:48,070 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 36 DAG size of output: 1 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)