./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Ex03.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-restricted-15/Ex03.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 4c415167dfa4b02636468ff00722dddee0c99139 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:29:45,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:29:45,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:29:45,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:29:45,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:29:45,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:29:45,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:29:45,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:29:45,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:29:45,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:29:45,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:29:45,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:29:45,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:29:45,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:29:45,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:29:45,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:29:45,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:29:45,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:29:45,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:29:45,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:29:45,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:29:45,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:29:45,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:29:45,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:29:45,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:29:45,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:29:45,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:29:45,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:29:45,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:29:45,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:29:45,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:29:45,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:29:45,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:29:45,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:29:45,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:29:45,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:29:45,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:29:45,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:29:45,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:29:45,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:29:45,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:29:45,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:29:45,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:29:45,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:29:45,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:29:45,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:29:45,193 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:29:45,194 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:29:45,194 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:29:45,194 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:29:45,194 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:29:45,194 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:29:45,195 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:29:45,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:29:45,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:29:45,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:29:45,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:29:45,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:29:45,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:29:45,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:29:45,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:29:45,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:29:45,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:29:45,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:29:45,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:29:45,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:29:45,198 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:29:45,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:29:45,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:29:45,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:29:45,199 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:29:45,200 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:29:45,200 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 -> 4c415167dfa4b02636468ff00722dddee0c99139 [2020-07-29 01:29:45,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:29:45,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:29:45,511 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:29:45,513 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:29:45,514 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:29:45,514 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Ex03.c [2020-07-29 01:29:45,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4491e21e8/3c84c1c9e26549b699f460a3cb7d89f5/FLAG53eb37817 [2020-07-29 01:29:46,009 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:29:46,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex03.c [2020-07-29 01:29:46,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4491e21e8/3c84c1c9e26549b699f460a3cb7d89f5/FLAG53eb37817 [2020-07-29 01:29:46,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4491e21e8/3c84c1c9e26549b699f460a3cb7d89f5 [2020-07-29 01:29:46,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:29:46,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:29:46,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:29:46,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:29:46,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:29:46,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e32e189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46, skipping insertion in model container [2020-07-29 01:29:46,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:29:46,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:29:46,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:29:46,562 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:29:46,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:29:46,589 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:29:46,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46 WrapperNode [2020-07-29 01:29:46,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:29:46,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:29:46,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:29:46,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:29:46,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:29:46,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:29:46,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:29:46,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:29:46,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (1/1) ... [2020-07-29 01:29:46,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:29:46,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:29:46,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:29:46,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:29:46,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (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 01:29:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:29:46,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:29:46,937 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:29:46,937 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:29:46,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:29:46 BoogieIcfgContainer [2020-07-29 01:29:46,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:29:46,944 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:29:46,944 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:29:46,948 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:29:46,950 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:29:46,950 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:29:46" (1/3) ... [2020-07-29 01:29:46,952 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a4844d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:29:46, skipping insertion in model container [2020-07-29 01:29:46,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:29:46,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:29:46" (2/3) ... [2020-07-29 01:29:46,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a4844d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:29:46, skipping insertion in model container [2020-07-29 01:29:46,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:29:46,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:29:46" (3/3) ... [2020-07-29 01:29:46,961 INFO L371 chiAutomizerObserver]: Analyzing ICFG Ex03.c [2020-07-29 01:29:47,020 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:29:47,020 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:29:47,020 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:29:47,020 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:29:47,020 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:29:47,021 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:29:47,021 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:29:47,021 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:29:47,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:29:47,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:47,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:47,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:47,067 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:29:47,067 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:29:47,067 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:29:47,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:29:47,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:47,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:47,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:47,070 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:29:47,070 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:29:47,076 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2020-07-29 01:29:47,077 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 0); 4#L10true assume -5 != main_~i~0;main_~i~0 := 1 + main_~i~0; 8#L10-2true [2020-07-29 01:29:47,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:47,082 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:29:47,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:47,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045757248] [2020-07-29 01:29:47,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:47,166 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:47,170 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:47,188 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:47,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:47,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-07-29 01:29:47,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:47,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070657462] [2020-07-29 01:29:47,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:47,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:47,205 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:47,206 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:47,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:47,208 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-07-29 01:29:47,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:47,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85140112] [2020-07-29 01:29:47,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:47,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:47,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:47,221 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:47,298 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:29:47,299 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:29:47,299 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:29:47,299 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:29:47,300 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:29:47,300 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:47,300 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:29:47,300 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:29:47,300 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex03.c_Iteration1_Loop [2020-07-29 01:29:47,300 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:29:47,301 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:29:47,431 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 01:29:47,470 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 01:29:47,487 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 01:29:47,691 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:29:47,692 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 01:29:47,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:29:47,707 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 01:29:47,719 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:29:47,720 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 01:29:47,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:29:47,765 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 01:29:47,770 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:29:47,771 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 01:29:47,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:29:47,817 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) [2020-07-29 01:29:47,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:29:47,867 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:47,915 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:29:47,917 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:29:47,917 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:29:47,917 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:29:47,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:29:47,918 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:29:47,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:47,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:29:47,918 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:29:47,918 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex03.c_Iteration1_Loop [2020-07-29 01:29:47,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:29:47,919 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:29:47,929 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 01:29:47,935 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 01:29:47,942 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 01:29:48,102 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:29:48,108 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 01:29:48,115 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 01:29:48,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:29:48,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:29:48,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:29:48,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:29:48,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:29:48,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:29:48,138 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 01:29:48,171 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 01:29:48,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:29:48,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:29:48,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:29:48,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:29:48,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:29:48,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:29:48,184 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 01:29:48,222 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 01:29:48,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:29:48,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:29:48,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:29:48,225 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-07-29 01:29:48,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:29:48,228 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-29 01:29:48,228 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 01:29:48,233 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:29:48,243 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:29:48,244 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:29:48,256 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:29:48,256 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:29:48,256 INFO L510 LassoAnalysis]: Proved termination. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:29:48,257 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-29 01:29:48,297 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:29:48,302 INFO L393 LassoCheck]: Loop: "assume !!(main_~i~0 < 0);" "assume -5 != main_~i~0;main_~i~0 := 1 + main_~i~0;" [2020-07-29 01:29:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:48,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:48,344 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:29:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:48,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:29:48,358 INFO L280 TraceCheckUtils]: 0: Hoare triple {17#unseeded} havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; {17#unseeded} is VALID [2020-07-29 01:29:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:48,364 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:29:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:29:48,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:29:48,390 INFO L280 TraceCheckUtils]: 0: Hoare triple {20#(>= oldRank0 (* (- 1) ULTIMATE.start_main_~i~0))} assume !!(main_~i~0 < 0); {35#(and (<= 0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 0))} is VALID [2020-07-29 01:29:48,392 INFO L280 TraceCheckUtils]: 1: Hoare triple {35#(and (<= 0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< ULTIMATE.start_main_~i~0 0))} assume -5 != main_~i~0;main_~i~0 := 1 + main_~i~0; {30#(or unseeded (and (>= oldRank0 0) (> oldRank0 (* (- 1) ULTIMATE.start_main_~i~0))))} is VALID [2020-07-29 01:29:48,393 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 01:29:48,404 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:29:48,414 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 01:29:48,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,427 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 01:29:48,429 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2020-07-29 01:29:48,513 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 01:29:48,513 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 01:29:48,514 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:29:48,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-29 01:29:48,516 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:48,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:48,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:48,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:29:48,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:29:48,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:48,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:48,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2020-07-29 01:29:48,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:48,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:48,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:48,524 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 7 states. [2020-07-29 01:29:48,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:48,527 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:29:48,527 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:29:48,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:29:48,530 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:29:48,530 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 20 states and 28 transitions. cyclomatic complexity: 10 [2020-07-29 01:29:48,531 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:29:48,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,532 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 01:29:48,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,534 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 01:29:48,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:48,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:48,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,536 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 01:29:48,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 01:29:48,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 01:29:48,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,538 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 01:29:48,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:29:48,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 01:29:48,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,540 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 01:29:48,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:29:48,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:29:48,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,542 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 01:29:48,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:29:48,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:29:48,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,543 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 01:29:48,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,545 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 01:29:48,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:29:48,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:29:48,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,547 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 01:29:48,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,549 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 01:29:48,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:29:48,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 2 letters. [2020-07-29 01:29:48,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,551 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 01:29:48,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:48,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:48,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,552 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 01:29:48,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,553 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:29:48,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:29:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-07-29 01:29:48,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:29:48,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:29:48,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-29 01:29:48,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:29:48,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. cyclomatic complexity: 10 [2020-07-29 01:29:48,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:48,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2020-07-29 01:29:48,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-29 01:29:48,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-29 01:29:48,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-07-29 01:29:48,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 01:29:48,573 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-29 01:29:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-07-29 01:29:48,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-07-29 01:29:48,604 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:29:48,605 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:29:48,606 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:29:48,609 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 7 states. [2020-07-29 01:29:48,613 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:29:48,616 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2020-07-29 01:29:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2020-07-29 01:29:48,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:29:48,618 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:29:48,619 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 8 states and 11 transitions. [2020-07-29 01:29:48,619 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 8 states and 11 transitions. [2020-07-29 01:29:48,619 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:29:48,621 INFO L93 Difference]: Finished difference Result 9 states and 13 transitions. [2020-07-29 01:29:48,621 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2020-07-29 01:29:48,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:29:48,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:29:48,622 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:29:48,623 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:29:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-29 01:29:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-29 01:29:48,625 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:29:48,626 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:29:48,626 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:29:48,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-29 01:29:48,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:29:48,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:29:48,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:29:48,628 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 01:29:48,628 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:29:48,628 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 75#L10-2 assume !!(main_~i~0 < 0); 69#L10 [2020-07-29 01:29:48,628 INFO L796 eck$LassoCheckResult]: Loop: 69#L10 assume !(-5 != main_~i~0); 70#L10-2 assume !!(main_~i~0 < 0); 69#L10 [2020-07-29 01:29:48,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:48,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:29:48,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:48,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592174865] [2020-07-29 01:29:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:48,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:48,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:48,639 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:48,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2020-07-29 01:29:48,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:48,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567766723] [2020-07-29 01:29:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:48,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:48,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:48,652 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:29:48,653 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2020-07-29 01:29:48,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:29:48,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004948695] [2020-07-29 01:29:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:29:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:48,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:29:48,662 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:29:48,663 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:29:48,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:29:48 BoogieIcfgContainer [2020-07-29 01:29:48,725 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:29:48,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:29:48,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:29:48,726 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:29:48,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:29:46" (3/4) ... [2020-07-29 01:29:48,731 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 01:29:48,777 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:29:48,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:29:48,781 INFO L168 Benchmark]: Toolchain (without parser) took 2418.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 956.2 MB in the beginning and 962.2 MB in the end (delta: -6.0 MB). Peak memory consumption was 138.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:48,782 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:29:48,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.74 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:48,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.42 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:29:48,784 INFO L168 Benchmark]: Boogie Preprocessor took 75.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:48,785 INFO L168 Benchmark]: RCFGBuilder took 247.17 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:48,786 INFO L168 Benchmark]: BuchiAutomizer took 1781.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 161.5 MB). Peak memory consumption was 161.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:29:48,786 INFO L168 Benchmark]: Witness Printer took 51.36 ms. Allocated memory is still 1.2 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:29:48,791 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 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.74 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 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 30.42 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 247.17 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1781.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 161.5 MB). Peak memory consumption was 161.5 MB. Max. memory is 11.5 GB. * Witness Printer took 51.36 ms. Allocated memory is still 1.2 GB. Free memory is still 962.2 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 * i and consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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: inital14 mio100 ax185 hnf107 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq175 hnf96 smp100 dnf155 smp92 tf105 neg95 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms 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: 10]: 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@775f55c2=0, \result=0, i=-5} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i < 0 Loop: [L10] COND FALSE !(i != -5) [L9] COND TRUE i < 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...