./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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-crafted-lit/Urban-WST2013-Fig1.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 bbffee41c5a3e36a7439f4e96877154fc3cf2a16 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 13:58:12,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 13:58:12,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 13:58:12,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 13:58:12,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 13:58:12,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 13:58:12,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 13:58:12,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 13:58:12,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 13:58:12,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 13:58:12,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 13:58:12,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 13:58:12,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 13:58:12,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 13:58:12,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 13:58:12,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 13:58:12,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 13:58:12,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 13:58:12,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 13:58:12,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 13:58:12,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 13:58:12,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 13:58:12,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 13:58:12,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 13:58:12,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 13:58:12,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 13:58:12,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 13:58:12,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 13:58:12,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 13:58:12,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 13:58:12,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 13:58:12,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 13:58:12,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 13:58:12,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 13:58:12,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 13:58:12,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 13:58:12,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 13:58:12,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 13:58:12,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 13:58:12,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 13:58:12,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 13:58:12,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 13:58:12,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 13:58:12,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 13:58:12,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 13:58:12,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 13:58:12,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 13:58:12,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 13:58:12,828 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 13:58:12,829 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 13:58:12,829 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 13:58:12,829 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 13:58:12,830 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 13:58:12,830 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 13:58:12,830 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 13:58:12,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 13:58:12,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 13:58:12,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 13:58:12,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 13:58:12,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 13:58:12,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 13:58:12,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 13:58:12,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 13:58:12,832 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 13:58:12,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 13:58:12,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 13:58:12,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 13:58:12,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 13:58:12,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 13:58:12,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 13:58:12,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 13:58:12,834 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 13:58:12,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbffee41c5a3e36a7439f4e96877154fc3cf2a16 [2021-08-27 13:58:13,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 13:58:13,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 13:58:13,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 13:58:13,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 13:58:13,126 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 13:58:13,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2021-08-27 13:58:13,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/717920bd6/d77399a26f464ce38bc55ad406e0a7b8/FLAGaf1cdd235 [2021-08-27 13:58:13,609 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 13:58:13,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2021-08-27 13:58:13,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/717920bd6/d77399a26f464ce38bc55ad406e0a7b8/FLAGaf1cdd235 [2021-08-27 13:58:13,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/717920bd6/d77399a26f464ce38bc55ad406e0a7b8 [2021-08-27 13:58:13,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 13:58:13,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 13:58:13,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 13:58:13,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 13:58:13,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 13:58:13,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306df86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13, skipping insertion in model container [2021-08-27 13:58:13,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 13:58:13,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 13:58:13,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:58:13,789 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 13:58:13,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:58:13,809 INFO L208 MainTranslator]: Completed translation [2021-08-27 13:58:13,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13 WrapperNode [2021-08-27 13:58:13,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 13:58:13,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 13:58:13,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 13:58:13,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 13:58:13,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 13:58:13,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 13:58:13,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 13:58:13,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 13:58:13,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 13:58:13,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 13:58:13,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 13:58:13,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 13:58:13,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (1/1) ... [2021-08-27 13:58:13,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:13,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:13,907 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) [2021-08-27 13:58:13,936 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 [2021-08-27 13:58:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 13:58:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 13:58:14,068 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 13:58:14,069 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 13:58:14,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:58:14 BoogieIcfgContainer [2021-08-27 13:58:14,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 13:58:14,071 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 13:58:14,071 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 13:58:14,074 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 13:58:14,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:58:14,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 01:58:13" (1/3) ... [2021-08-27 13:58:14,076 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@102cf1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:58:14, skipping insertion in model container [2021-08-27 13:58:14,076 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:58:14,076 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:58:13" (2/3) ... [2021-08-27 13:58:14,077 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@102cf1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:58:14, skipping insertion in model container [2021-08-27 13:58:14,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:58:14,077 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:58:14" (3/3) ... [2021-08-27 13:58:14,078 INFO L389 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig1.c [2021-08-27 13:58:14,114 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 13:58:14,115 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 13:58:14,115 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 13:58:14,115 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 13:58:14,115 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 13:58:14,115 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 13:58:14,116 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 13:58:14,116 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 13:58:14,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-27 13:58:14,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:58:14,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:58:14,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:58:14,143 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 13:58:14,143 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:58:14,143 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 13:58:14,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-27 13:58:14,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:58:14,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:58:14,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:58:14,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 13:58:14,145 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:58:14,150 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L18-2true [2021-08-27 13:58:14,150 INFO L793 eck$LassoCheckResult]: Loop: 8#L18-2true assume !!(main_~x~0 <= 10); 5#L18true assume main_~x~0 > 6;main_~x~0 := 2 + main_~x~0; 8#L18-2true [2021-08-27 13:58:14,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:58:14,155 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-27 13:58:14,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:58:14,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104004395] [2021-08-27 13:58:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:58:14,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:58:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:14,233 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:58:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:14,255 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:58:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:58:14,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-08-27 13:58:14,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:58:14,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870905403] [2021-08-27 13:58:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:58:14,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:58:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:14,276 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:58:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:14,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:58:14,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:58:14,287 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-08-27 13:58:14,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:58:14,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782776082] [2021-08-27 13:58:14,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:58:14,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:58:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:14,302 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:58:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:14,310 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:58:14,409 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:58:14,410 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:58:14,410 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:58:14,410 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:58:14,410 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:58:14,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:14,411 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:58:14,411 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:58:14,411 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig1.c_Iteration1_Loop [2021-08-27 13:58:14,411 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:58:14,411 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:58:14,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:58:14,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:58:14,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:58:14,539 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:58:14,539 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:58:14,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:14,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:14,542 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) [2021-08-27 13:58:14,543 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 [2021-08-27 13:58:14,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:58:14,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:58:14,572 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:58:14,572 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:58:14,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 13:58:14,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:14,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:14,605 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) [2021-08-27 13:58:14,606 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 [2021-08-27 13:58:14,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:58:14,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:58:14,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:58:14,629 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:58:14,668 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 [2021-08-27 13:58:14,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:14,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:14,670 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) [2021-08-27 13:58:14,671 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 [2021-08-27 13:58:14,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:58:14,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:58:14,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 13:58:14,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:14,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:14,733 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) [2021-08-27 13:58:14,734 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 [2021-08-27 13:58:14,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:58:14,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:58:14,764 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:58:14,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 13:58:14,791 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:58:14,791 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:58:14,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:58:14,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:58:14,792 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:58:14,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:14,792 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:58:14,792 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:58:14,792 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig1.c_Iteration1_Loop [2021-08-27 13:58:14,792 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:58:14,792 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:58:14,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:58:14,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:58:14,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:58:14,854 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:58:14,858 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:58:14,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:14,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:14,868 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) [2021-08-27 13:58:14,869 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 [2021-08-27 13:58:14,872 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 [2021-08-27 13:58:14,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:58:14,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:58:14,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:58:14,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:58:14,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:58:14,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:58:14,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:58:14,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 13:58:14,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:14,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:14,926 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) [2021-08-27 13:58:14,940 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 [2021-08-27 13:58:14,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:58:14,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:58:14,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:58:14,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:58:14,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:58:14,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:58:14,969 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 [2021-08-27 13:58:14,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:58:15,001 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 [2021-08-27 13:58:15,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:15,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:15,003 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) [2021-08-27 13:58:15,008 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 [2021-08-27 13:58:15,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:58:15,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:58:15,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:58:15,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:58:15,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:58:15,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:58:15,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:58:15,021 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 [2021-08-27 13:58:15,028 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:58:15,043 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:58:15,043 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 13:58:15,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:58:15,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:58:15,049 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) [2021-08-27 13:58:15,051 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 [2021-08-27 13:58:15,054 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:58:15,054 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:58:15,054 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:58:15,055 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 + 11 Supporting invariants [] [2021-08-27 13:58:15,080 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 [2021-08-27 13:58:15,082 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:58:15,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:58:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:58:15,111 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:58:15,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:58:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:58:15,120 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:58:15,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:58:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:58:15,163 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:58:15,166 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-27 13:58:15,207 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 20 states and 28 transitions. Complement of second has 7 states. [2021-08-27 13:58:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 13:58:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-08-27 13:58:15,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-08-27 13:58:15,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2021-08-27 13:58:15,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:58:15,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 13:58:15,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:58:15,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2021-08-27 13:58:15,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:58:15,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2021-08-27 13:58:15,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:58:15,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2021-08-27 13:58:15,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-08-27 13:58:15,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-27 13:58:15,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-08-27 13:58:15,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:58:15,221 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-08-27 13:58:15,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-08-27 13:58:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-08-27 13:58:15,238 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) [2021-08-27 13:58:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-08-27 13:58:15,240 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:58:15,240 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:58:15,240 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 13:58:15,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-08-27 13:58:15,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:58:15,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:58:15,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:58:15,241 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 13:58:15,241 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:58:15,242 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 69#L18-2 assume !!(main_~x~0 <= 10); 63#L18 [2021-08-27 13:58:15,242 INFO L793 eck$LassoCheckResult]: Loop: 63#L18 assume !(main_~x~0 > 6); 64#L18-2 assume !!(main_~x~0 <= 10); 63#L18 [2021-08-27 13:58:15,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:58:15,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-08-27 13:58:15,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:58:15,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335880929] [2021-08-27 13:58:15,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:58:15,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:58:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:15,250 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:58:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:15,254 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:58:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:58:15,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2021-08-27 13:58:15,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:58:15,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081830233] [2021-08-27 13:58:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:58:15,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:58:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:15,260 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:58:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:15,263 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:58:15,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:58:15,266 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2021-08-27 13:58:15,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:58:15,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994736657] [2021-08-27 13:58:15,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:58:15,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:58:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:15,269 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:58:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:58:15,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:58:15,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 13:58:15,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 01:58:15 BoogieIcfgContainer [2021-08-27 13:58:15,337 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 13:58:15,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 13:58:15,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 13:58:15,338 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 13:58:15,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:58:14" (3/4) ... [2021-08-27 13:58:15,340 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 13:58:15,367 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 13:58:15,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 13:58:15,369 INFO L168 Benchmark]: Toolchain (without parser) took 1726.81 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.8 MB in the beginning and 43.5 MB in the end (delta: -11.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:58:15,371 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 37.0 MB in the beginning and 37.0 MB in the end (delta: 37.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:58:15,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.91 ms. Allocated memory is still 54.5 MB. Free memory was 31.6 MB in the beginning and 36.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-08-27 13:58:15,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.60 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 36.8 MB in the beginning and 51.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:58:15,374 INFO L168 Benchmark]: Boogie Preprocessor took 24.37 ms. Allocated memory is still 67.1 MB. Free memory was 51.6 MB in the beginning and 50.6 MB in the end (delta: 943.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:58:15,375 INFO L168 Benchmark]: RCFGBuilder took 203.64 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 42.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 13:58:15,376 INFO L168 Benchmark]: BuchiAutomizer took 1265.79 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 45.3 MB in the end (delta: -3.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:58:15,376 INFO L168 Benchmark]: Witness Printer took 30.23 ms. Allocated memory is still 67.1 MB. Free memory was 45.0 MB in the beginning and 43.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:58:15,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 37.0 MB in the beginning and 37.0 MB in the end (delta: 37.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 166.91 ms. Allocated memory is still 54.5 MB. Free memory was 31.6 MB in the beginning and 36.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.60 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 36.8 MB in the beginning and 51.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.37 ms. Allocated memory is still 67.1 MB. Free memory was 51.6 MB in the beginning and 50.6 MB in the end (delta: 943.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 203.64 ms. Allocated memory is still 67.1 MB. Free memory was 50.6 MB in the beginning and 42.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1265.79 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 45.3 MB in the end (delta: -3.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * Witness Printer took 30.23 ms. Allocated memory is still 67.1 MB. Free memory was 45.0 MB in the beginning and 43.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * x + 11 and consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 8.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 18]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ca9911f=0, \result=0, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 18]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x <= 10 Loop: [L18] COND FALSE !(x > 6) [L17] COND TRUE x <= 10 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 13:58:15,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...