./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-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 0.1.25-8bd4bc6 [2020-07-29 01:28:59,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:28:59,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:29:00,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:29:00,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:29:00,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:29:00,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:29:00,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:29:00,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:29:00,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:29:00,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:29:00,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:29:00,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:29:00,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:29:00,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:29:00,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:29:00,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:29:00,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:29:00,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:29:00,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:29:00,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:29:00,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:29:00,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:29:00,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:29:00,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:29:00,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:29:00,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:29:00,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:29:00,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:29:00,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:29:00,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:29:00,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:29:00,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:29:00,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:29:00,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:29:00,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:29:00,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:29:00,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:29:00,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:29:00,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:29:00,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:29:00,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:29:00,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:29:00,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:29:00,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:29:00,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:29:00,114 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:29:00,114 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:29:00,116 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:29:00,117 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:29:00,117 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:29:00,117 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:29:00,117 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:29:00,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:29:00,119 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:29:00,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:29:00,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:29:00,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:29:00,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:29:00,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:29:00,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:29:00,122 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:29:00,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:29:00,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:29:00,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:29:00,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:29:00,124 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:29:00,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:29:00,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:29:00,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:29:00,125 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:29:00,127 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:29:00,127 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbffee41c5a3e36a7439f4e96877154fc3cf2a16 [2020-07-29 01:29:00,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:29:00,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:29:00,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:29:00,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:29:00,500 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:29:00,501 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2020-07-29 01:29:00,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f1d1533/4344edb8a81f41a7bd6d137a88515498/FLAG3b4933ea6 [2020-07-29 01:29:01,091 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:29:01,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2020-07-29 01:29:01,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f1d1533/4344edb8a81f41a7bd6d137a88515498/FLAG3b4933ea6 [2020-07-29 01:29:01,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4f1d1533/4344edb8a81f41a7bd6d137a88515498 [2020-07-29 01:29:01,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:29:01,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:29:01,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:29:01,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:29:01,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:29:01,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab0d7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01, skipping insertion in model container [2020-07-29 01:29:01,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:29:01,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:29:01,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:29:01,785 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:29:01,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:29:01,813 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:29:01,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01 WrapperNode [2020-07-29 01:29:01,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:29:01,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:29:01,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:29:01,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:29:01,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:29:01,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:29:01,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:29:01,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:29:01,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... [2020-07-29 01:29:01,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:29:01,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:29:01,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:29:01,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:29:01,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:29:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:29:02,200 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:29:02,200 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:29:02,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:29:02 BoogieIcfgContainer [2020-07-29 01:29:02,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:29:02,211 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:29:02,211 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:29:02,215 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:29:02,219 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:29:02,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:29:01" (1/3) ... [2020-07-29 01:29:02,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51228fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:29:02, skipping insertion in model container [2020-07-29 01:29:02,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:29:02,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:01" (2/3) ... [2020-07-29 01:29:02,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51228fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:29:02, skipping insertion in model container [2020-07-29 01:29:02,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:29:02,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:29:02" (3/3) ... [2020-07-29 01:29:02,225 INFO L371 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig1.c [2020-07-29 01:29:02,320 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:29:02,320 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:29:02,320 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:29:02,320 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:29:02,321 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:29:02,321 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:29:02,321 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:29:02,321 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:29:02,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:29:02,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:02,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:02,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:02,367 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:29:02,367 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:29:02,367 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:29:02,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:29:02,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:02,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:02,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:02,370 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:29:02,371 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:29:02,377 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L18-2true [2020-07-29 01:29:02,378 INFO L796 eck$LassoCheckResult]: Loop: 5#L18-2true assume !!(main_~x~0 <= 10); 8#L18true assume main_~x~0 > 6;main_~x~0 := 2 + main_~x~0; 5#L18-2true [2020-07-29 01:29:02,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:02,383 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:29:02,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:02,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450094351] [2020-07-29 01:29:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:02,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:02,474 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:02,493 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:02,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:02,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-07-29 01:29:02,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:02,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517472397] [2020-07-29 01:29:02,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:02,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:02,513 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:02,515 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:02,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:02,517 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-07-29 01:29:02,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:02,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988289709] [2020-07-29 01:29:02,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:02,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:02,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:02,531 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:02,602 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:29:02,603 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:29:02,603 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:29:02,603 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:29:02,603 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:29:02,604 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:02,604 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:29:02,604 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:29:02,604 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig1.c_Iteration1_Loop [2020-07-29 01:29:02,604 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:29:02,605 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:29:02,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:29:02,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:29:02,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:29:02,825 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:29:02,825 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:29:02,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:29:02,841 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:02,853 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:29:02,853 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:29:02,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:29:02,897 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:02,902 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:29:02,902 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:29:02,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:29:02,948 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:02,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:29:02,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:29:03,000 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:29:03,024 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:29:03,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:29:03,024 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:29:03,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:29:03,025 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:29:03,025 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:03,025 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:29:03,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:29:03,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig1.c_Iteration1_Loop [2020-07-29 01:29:03,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:29:03,026 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:29:03,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:29:03,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:29:03,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:29:03,192 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:29:03,198 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:03,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:29:03,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:29:03,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:29:03,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:29:03,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:29:03,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:29:03,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:29:03,224 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:03,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:29:03,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:29:03,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:29:03,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:29:03,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:29:03,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:29:03,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:29:03,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:29:03,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 01:29:03,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:29:03,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:29:03,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:29:03,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:29:03,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:29:03,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:29:03,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:03,355 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:29:03,365 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:29:03,365 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:29:03,371 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:29:03,371 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:29:03,371 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:29:03,372 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 + 11 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:03,420 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:29:03,426 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 <= 10);" "assume main_~x~0 > 6;main_~x~0 := 2 + main_~x~0;" [2020-07-29 01:29:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:03,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:03,479 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:29:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:03,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:29:03,497 INFO L280 TraceCheckUtils]: 0: Hoare triple {17#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; {17#unseeded} is VALID [2020-07-29 01:29:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:03,505 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:29:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:03,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:29:03,541 INFO L280 TraceCheckUtils]: 0: Hoare triple {20#(>= oldRank0 (+ (* (- 1) ULTIMATE.start_main_~x~0) 11))} assume !!(main_~x~0 <= 10); {35#(and (<= 11 (+ oldRank0 ULTIMATE.start_main_~x~0)) (<= ULTIMATE.start_main_~x~0 10))} is VALID [2020-07-29 01:29:03,543 INFO L280 TraceCheckUtils]: 1: Hoare triple {35#(and (<= 11 (+ oldRank0 ULTIMATE.start_main_~x~0)) (<= ULTIMATE.start_main_~x~0 10))} assume main_~x~0 > 6;main_~x~0 := 2 + main_~x~0; {30#(or (and (> oldRank0 (+ (* (- 1) ULTIMATE.start_main_~x~0) 11)) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:29:03,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:29:03,554 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:29:03,569 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:29:03,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,582 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-29 01:29:03,584 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2020-07-29 01:29:03,680 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2020-07-29 01:29:03,682 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 [2020-07-29 01:29:03,683 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:29:03,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:29:03,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:03,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:03,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:03,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:29:03,693 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:29:03,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:03,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:03,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2020-07-29 01:29:03,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:03,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:03,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:03,700 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 7 states. [2020-07-29 01:29:03,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:03,708 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:29:03,708 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:29:03,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:29:03,712 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:29:03,713 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 20 states and 28 transitions. cyclomatic complexity: 10 [2020-07-29 01:29:03,713 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:29:03,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:03,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:03,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:03,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 01:29:03,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 01:29:03,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 20 letters. Loop has 20 letters. [2020-07-29 01:29:03,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:29:03,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:29:03,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:29:03,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:29:03,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:29:03,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:29:03,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:29:03,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:29:03,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:29:03,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:29:03,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:29:03,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:29:03,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:29:03,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:29:03,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:29:03,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:03,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:03,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states and 28 transitions. cyclomatic complexity: 10 Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:03,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,756 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:29:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:29:03,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-07-29 01:29:03,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:03,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:03,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-29 01:29:03,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:03,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. cyclomatic complexity: 10 [2020-07-29 01:29:03,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:03,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2020-07-29 01:29:03,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-29 01:29:03,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-29 01:29:03,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-07-29 01:29:03,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 01:29:03,787 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-29 01:29:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-07-29 01:29:03,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-07-29 01:29:03,815 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:29:03,816 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:29:03,816 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:29:03,818 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:29:03,821 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:29:03,823 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2020-07-29 01:29:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2020-07-29 01:29:03,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:29:03,825 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:29:03,825 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 8 states and 11 transitions. [2020-07-29 01:29:03,825 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 8 states and 11 transitions. [2020-07-29 01:29:03,825 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:29:03,827 INFO L93 Difference]: Finished difference Result 9 states and 13 transitions. [2020-07-29 01:29:03,827 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2020-07-29 01:29:03,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:29:03,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:29:03,828 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:29:03,828 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:29:03,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-29 01:29:03,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-29 01:29:03,830 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:29:03,830 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:29:03,830 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:29:03,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-29 01:29:03,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:03,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:03,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:03,831 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 01:29:03,831 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:29:03,832 INFO L794 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 70#L18-2 assume !!(main_~x~0 <= 10); 72#L18 [2020-07-29 01:29:03,832 INFO L796 eck$LassoCheckResult]: Loop: 72#L18 assume !(main_~x~0 > 6); 71#L18-2 assume !!(main_~x~0 <= 10); 72#L18 [2020-07-29 01:29:03,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:03,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:29:03,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:03,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71412958] [2020-07-29 01:29:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:03,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:03,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:03,840 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:03,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:03,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2020-07-29 01:29:03,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:03,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875546521] [2020-07-29 01:29:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:03,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:03,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:03,851 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:03,851 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2020-07-29 01:29:03,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:03,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600940287] [2020-07-29 01:29:03,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:03,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:03,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:03,861 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:03,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:29:03 BoogieIcfgContainer [2020-07-29 01:29:03,912 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:29:03,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:29:03,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:29:03,913 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:29:03,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:29:02" (3/4) ... [2020-07-29 01:29:03,917 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 01:29:03,957 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:29:03,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:29:03,961 INFO L168 Benchmark]: Toolchain (without parser) took 2450.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 961.6 MB in the beginning and 945.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 136.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:03,961 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:29:03,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.47 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:03,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:03,964 INFO L168 Benchmark]: Boogie Preprocessor took 17.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:03,965 INFO L168 Benchmark]: RCFGBuilder took 276.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:03,966 INFO L168 Benchmark]: BuchiAutomizer took 1701.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.9 MB in the end (delta: 153.0 MB). Peak memory consumption was 153.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:03,966 INFO L168 Benchmark]: Witness Printer took 45.01 ms. Allocated memory is still 1.2 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:29:03,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 301.47 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 100.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 276.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1701.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.9 MB in the end (delta: 153.0 MB). Peak memory consumption was 153.0 MB. Max. memory is 11.5 GB. * Witness Printer took 45.01 ms. Allocated memory is still 1.2 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s 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, 6 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 23ms 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@79783dc6=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! Received shutdown request...