./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/NO_01.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 ac2b0e405f36a91125e1a90b6b63874c5fe808a1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:16:40,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:16:40,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:16:40,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:16:40,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:16:40,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:16:40,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:16:40,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:16:40,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:16:40,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:16:40,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:16:40,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:16:40,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:16:40,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:16:40,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:16:40,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:16:40,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:16:40,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:16:40,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:16:40,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:16:40,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:16:40,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:16:40,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:16:40,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:16:40,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:16:40,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:16:40,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:16:40,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:16:40,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:16:40,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:16:40,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:16:40,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:16:40,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:16:40,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:16:40,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:16:40,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:16:40,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:16:40,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:16:40,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:16:40,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:16:40,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:16:40,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:16:40,204 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:16:40,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:16:40,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:16:40,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:16:40,208 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:16:40,208 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:16:40,208 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:16:40,209 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:16:40,209 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:16:40,209 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:16:40,210 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:16:40,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:16:40,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:16:40,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:16:40,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:16:40,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:16:40,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:16:40,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:16:40,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:16:40,213 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:16:40,213 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:16:40,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:16:40,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:16:40,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:16:40,214 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:16:40,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:16:40,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:16:40,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:16:40,215 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:16:40,217 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:16:40,218 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac2b0e405f36a91125e1a90b6b63874c5fe808a1 [2020-10-26 04:16:40,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:16:40,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:16:40,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:16:40,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:16:40,778 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:16:40,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_01.c [2020-10-26 04:16:40,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5426c589/379baf02f7a74f8e84222e1719381f31/FLAGdea1ecf66 [2020-10-26 04:16:41,443 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:16:41,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_01.c [2020-10-26 04:16:41,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5426c589/379baf02f7a74f8e84222e1719381f31/FLAGdea1ecf66 [2020-10-26 04:16:41,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5426c589/379baf02f7a74f8e84222e1719381f31 [2020-10-26 04:16:41,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:16:41,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:16:41,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:16:41,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:16:41,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:16:41,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:16:41" (1/1) ... [2020-10-26 04:16:41,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248693b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:41, skipping insertion in model container [2020-10-26 04:16:41,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:16:41" (1/1) ... [2020-10-26 04:16:41,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:16:41,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:16:42,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:16:42,076 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:16:42,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:16:42,107 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:16:42,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42 WrapperNode [2020-10-26 04:16:42,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:16:42,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:16:42,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:16:42,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:16:42,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:16:42,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:16:42,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:16:42,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:16:42,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (1/1) ... [2020-10-26 04:16:42,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:16:42,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:16:42,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:16:42,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:16:42,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (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 [2020-10-26 04:16:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:16:42,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:16:42,607 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:16:42,607 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-26 04:16:42,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:16:42 BoogieIcfgContainer [2020-10-26 04:16:42,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:16:42,615 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:16:42,618 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:16:42,626 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:16:42,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:16:42,629 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:16:41" (1/3) ... [2020-10-26 04:16:42,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bbd59d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:16:42, skipping insertion in model container [2020-10-26 04:16:42,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:16:42,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:42" (2/3) ... [2020-10-26 04:16:42,635 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bbd59d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:16:42, skipping insertion in model container [2020-10-26 04:16:42,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:16:42,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:16:42" (3/3) ... [2020-10-26 04:16:42,643 INFO L373 chiAutomizerObserver]: Analyzing ICFG NO_01.c [2020-10-26 04:16:42,724 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:16:42,724 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:16:42,725 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:16:42,725 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:16:42,725 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:16:42,725 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:16:42,725 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:16:42,726 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:16:42,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-26 04:16:42,764 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-10-26 04:16:42,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:16:42,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:16:42,772 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:16:42,773 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:16:42,773 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:16:42,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-26 04:16:42,775 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-10-26 04:16:42,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:16:42,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:16:42,776 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:16:42,776 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:16:42,786 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 3#L10true assume main_~c~0 <= 10;main_~i~0 := 0; 4#L12-2true [2020-10-26 04:16:42,786 INFO L796 eck$LassoCheckResult]: Loop: 4#L12-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 4#L12-2true [2020-10-26 04:16:42,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:42,794 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-10-26 04:16:42,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:16:42,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638224551] [2020-10-26 04:16:42,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:16:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:16:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:16:42,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638224551] [2020-10-26 04:16:42,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:16:42,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:16:42,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244428422] [2020-10-26 04:16:42,982 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:16:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:42,984 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2020-10-26 04:16:42,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:16:42,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788943375] [2020-10-26 04:16:42,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:16:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:42,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:43,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:43,017 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:16:43,066 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:16:43,067 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:16:43,067 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:16:43,067 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:16:43,068 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:16:43,068 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:16:43,068 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:16:43,068 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:16:43,069 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2020-10-26 04:16:43,069 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:16:43,069 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:16:43,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:16:43,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:16:43,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:16:43,262 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:16:43,263 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) [2020-10-26 04:16:43,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:43,274 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 [2020-10-26 04:16:43,287 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:16:43,288 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) [2020-10-26 04:16:43,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:43,335 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 [2020-10-26 04:16:43,343 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:16:43,343 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) [2020-10-26 04:16:43,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:43,391 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) [2020-10-26 04:16:43,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:16:43,441 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 [2020-10-26 04:16:43,483 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:16:43,486 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:16:43,486 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:16:43,486 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:16:43,486 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:16:43,486 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:16:43,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:16:43,487 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:16:43,487 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:16:43,487 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2020-10-26 04:16:43,487 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:16:43,487 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:16:43,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:16:43,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:16:43,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:16:43,619 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:16:43,625 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) [2020-10-26 04:16:43,633 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 [2020-10-26 04:16:43,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:16:43,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:16:43,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:16:43,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:16:43,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:16:43,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:16:43,650 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 [2020-10-26 04:16:43,688 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 [2020-10-26 04:16:43,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:16:43,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:16:43,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:16:43,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:16:43,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:16:43,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:16:43,701 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) [2020-10-26 04:16:43,740 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 [2020-10-26 04:16:43,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:16:43,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:16:43,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:16:43,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:16:43,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:16:43,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:16:43,746 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 [2020-10-26 04:16:43,751 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:16:43,758 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:16:43,759 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:16:43,765 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:16:43,765 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:16:43,765 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:16:43,767 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2020-10-26 04:16:43,802 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:16:43,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:16:43,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:16:43,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:16:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:16:43,945 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:16:43,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:16:43,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:16:43,972 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-26 04:16:43,974 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2020-10-26 04:16:44,035 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 29 states and 45 transitions. Complement of second has 5 states. [2020-10-26 04:16:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:16:44,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-26 04:16:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-10-26 04:16:44,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-26 04:16:44,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:16:44,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-26 04:16:44,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:16:44,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-26 04:16:44,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:16:44,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. [2020-10-26 04:16:44,059 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2020-10-26 04:16:44,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 7 states and 10 transitions. [2020-10-26 04:16:44,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-26 04:16:44,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-26 04:16:44,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-10-26 04:16:44,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:16:44,065 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-26 04:16:44,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-10-26 04:16:44,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-10-26 04:16:44,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-26 04:16:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-10-26 04:16:44,098 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-26 04:16:44,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:16:44,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:16:44,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:16:44,106 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2020-10-26 04:16:44,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:16:44,125 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2020-10-26 04:16:44,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:16:44,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2020-10-26 04:16:44,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:16:44,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2020-10-26 04:16:44,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-10-26 04:16:44,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-10-26 04:16:44,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2020-10-26 04:16:44,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:16:44,129 INFO L691 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-10-26 04:16:44,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2020-10-26 04:16:44,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-10-26 04:16:44,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-26 04:16:44,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2020-10-26 04:16:44,132 INFO L714 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-10-26 04:16:44,132 INFO L594 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-10-26 04:16:44,133 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:16:44,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2020-10-26 04:16:44,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:16:44,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:16:44,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:16:44,134 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-26 04:16:44,134 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:16:44,134 INFO L794 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 84#L10 assume !(main_~c~0 <= 10); 85#L17 assume !(main_~c~0 <= 50); 86#L17-1 assume !(main_~c~0 <= 100);main_~i~0 := 0; 87#L31-2 [2020-10-26 04:16:44,134 INFO L796 eck$LassoCheckResult]: Loop: 87#L31-2 assume !!(main_~i~0 < 103);main_~i~0 := main_~i~0; 87#L31-2 [2020-10-26 04:16:44,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:44,138 INFO L82 PathProgramCache]: Analyzing trace with hash 971748, now seen corresponding path program 1 times [2020-10-26 04:16:44,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:16:44,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845856075] [2020-10-26 04:16:44,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:16:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:44,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:44,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:44,160 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:16:44,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:44,160 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2020-10-26 04:16:44,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:16:44,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792470797] [2020-10-26 04:16:44,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:16:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:44,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:44,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:44,178 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:16:44,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:44,179 INFO L82 PathProgramCache]: Analyzing trace with hash 30124250, now seen corresponding path program 1 times [2020-10-26 04:16:44,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:16:44,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705860474] [2020-10-26 04:16:44,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:16:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:44,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:44,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:44,214 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:16:44,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:16:44 BoogieIcfgContainer [2020-10-26 04:16:44,293 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:16:44,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:16:44,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:16:44,297 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:16:44,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:16:42" (3/4) ... [2020-10-26 04:16:44,303 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-26 04:16:44,360 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:16:44,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:16:44,363 INFO L168 Benchmark]: Toolchain (without parser) took 2518.68 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.3 MB in the beginning and 40.1 MB in the end (delta: -13.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:16:44,364 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 37.7 MB. Free memory was 20.2 MB in the beginning and 20.2 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:16:44,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.19 ms. Allocated memory is still 48.2 MB. Free memory was 25.6 MB in the beginning and 28.5 MB in the end (delta: -2.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:44,366 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.89 ms. Allocated memory is still 48.2 MB. Free memory was 28.3 MB in the beginning and 27.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:16:44,366 INFO L168 Benchmark]: Boogie Preprocessor took 21.86 ms. Allocated memory is still 48.2 MB. Free memory was 27.1 MB in the beginning and 26.1 MB in the end (delta: 921.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:44,367 INFO L168 Benchmark]: RCFGBuilder took 446.11 ms. Allocated memory is still 48.2 MB. Free memory was 26.0 MB in the beginning and 28.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:44,370 INFO L168 Benchmark]: BuchiAutomizer took 1678.73 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.3 MB in the beginning and 41.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:44,374 INFO L168 Benchmark]: Witness Printer took 63.96 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 40.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:44,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 37.7 MB. Free memory was 20.2 MB in the beginning and 20.2 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.19 ms. Allocated memory is still 48.2 MB. Free memory was 25.6 MB in the beginning and 28.5 MB in the end (delta: -2.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.89 ms. Allocated memory is still 48.2 MB. Free memory was 28.3 MB in the beginning and 27.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.86 ms. Allocated memory is still 48.2 MB. Free memory was 27.1 MB in the beginning and 26.1 MB in the end (delta: 921.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 446.11 ms. Allocated memory is still 48.2 MB. Free memory was 26.0 MB in the beginning and 28.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1678.73 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.3 MB in the beginning and 41.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 63.96 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 40.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 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 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 23 SDslu, 3 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 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: 31]: 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 {\result=0, c=864, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 [L10] COND FALSE !(c <= 10) [L17] COND FALSE !(c <= 50) [L23] COND FALSE !(c <= 100) [L30] i = 0 Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...