./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Flip.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/Flip.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 450446710566ec183df799a31b6732fa6118716d .................................................................................................................................................................................................................................................................................................................................................................................... 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 04:16:24,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:16:24,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:16:24,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:16:24,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:16:24,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:16:24,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:16:24,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:16:24,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:16:24,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:16:24,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:16:24,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:16:24,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:16:24,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:16:24,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:16:24,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:16:24,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:16:24,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:16:24,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:16:24,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:16:24,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:16:24,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:16:24,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:16:24,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:16:24,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:16:24,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:16:24,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:16:24,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:16:24,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:16:24,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:16:24,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:16:24,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:16:24,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:16:24,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:16:24,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:16:24,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:16:24,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:16:24,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:16:24,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:16:24,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:16:24,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:16:24,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:16:24,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:16:24,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:16:24,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:16:24,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:16:24,313 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:16:24,313 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:16:24,313 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:16:24,314 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:16:24,314 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:16:24,314 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:16:24,314 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:16:24,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:16:24,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:16:24,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:16:24,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:16:24,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:16:24,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:16:24,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:16:24,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:16:24,317 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:16:24,317 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:16:24,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:16:24,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:16:24,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:16:24,318 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:16:24,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:16:24,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:16:24,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:16:24,319 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:16:24,320 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:16:24,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 450446710566ec183df799a31b6732fa6118716d [2020-10-26 04:16:24,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:16:24,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:16:24,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:16:24,764 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:16:24,765 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:16:24,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Flip.c [2020-10-26 04:16:24,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad375d82/a296ca71ae9941dfba1b56522a98f06f/FLAGdb4218630 [2020-10-26 04:16:25,556 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:16:25,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Flip.c [2020-10-26 04:16:25,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad375d82/a296ca71ae9941dfba1b56522a98f06f/FLAGdb4218630 [2020-10-26 04:16:25,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad375d82/a296ca71ae9941dfba1b56522a98f06f [2020-10-26 04:16:25,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:16:25,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:16:25,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:16:25,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:16:25,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:16:25,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:16:25" (1/1) ... [2020-10-26 04:16:25,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fec046d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:25, skipping insertion in model container [2020-10-26 04:16:25,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:16:25" (1/1) ... [2020-10-26 04:16:25,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:16:25,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:16:26,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:16:26,181 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:16:26,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:16:26,210 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:16:26,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26 WrapperNode [2020-10-26 04:16:26,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:16:26,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:16:26,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:16:26,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:16:26,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:16:26,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:16:26,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:16:26,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:16:26,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (1/1) ... [2020-10-26 04:16:26,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:16:26,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:16:26,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:16:26,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:16:26,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (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 04:16:26,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:16:26,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:16:26,492 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:16:26,493 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:16:26,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:16:26 BoogieIcfgContainer [2020-10-26 04:16:26,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:16:26,496 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:16:26,496 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:16:26,499 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:16:26,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:16:26,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:16:25" (1/3) ... [2020-10-26 04:16:26,502 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72b01cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:16:26, skipping insertion in model container [2020-10-26 04:16:26,502 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:16:26,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:16:26" (2/3) ... [2020-10-26 04:16:26,503 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72b01cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:16:26, skipping insertion in model container [2020-10-26 04:16:26,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:16:26,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:16:26" (3/3) ... [2020-10-26 04:16:26,505 INFO L373 chiAutomizerObserver]: Analyzing ICFG Flip.c [2020-10-26 04:16:26,563 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:16:26,563 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:16:26,563 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:16:26,563 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:16:26,563 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:16:26,564 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:16:26,564 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:16:26,564 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:16:26,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-26 04:16:26,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:16:26,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:16:26,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:16:26,606 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:16:26,607 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:16:26,607 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:16:26,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-26 04:16:26,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:16:26,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:16:26,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:16:26,608 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:16:26,609 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:16:26,616 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~t~0;havoc main_~i~0;havoc main_~j~0;havoc main_~t~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~t~0 := 0; 5#L13-2true [2020-10-26 04:16:26,616 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(0 != main_~i~0 && 0 != main_~j~0);main_~t~0 := main_~i~0;main_~i~0 := main_~j~0;main_~j~0 := main_~t~0; 5#L13-2true [2020-10-26 04:16:26,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:26,623 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-26 04:16:26,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:16:26,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711318936] [2020-10-26 04:16:26,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:16:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:26,724 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:26,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:26,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:16:26,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:26,753 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-26 04:16:26,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:16:26,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97812729] [2020-10-26 04:16:26,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:16:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:26,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:26,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:26,776 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:16:26,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:16:26,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-26 04:16:26,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:16:26,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650357110] [2020-10-26 04:16:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:16:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:26,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:16:26,792 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:16:26,798 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:16:26,922 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:16:26,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:16:26,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:16:26,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:16:26,924 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:16:26,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:16:26,924 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:16:26,924 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:16:26,925 INFO L133 ssoRankerPreferences]: Filename of dumped script: Flip.c_Iteration1_Lasso [2020-10-26 04:16:26,925 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:16:26,925 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:16:26,961 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 04:16:27,023 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 04:16:27,063 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 04:16:27,069 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 04:16:27,080 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 04:16:27,118 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 04:16:27,395 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-10-26 04:16:27,414 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:16:27,415 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 04:16:27,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:27,425 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 04:16:27,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:16:27,436 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=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 04:16:27,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:27,481 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 04:16:27,486 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:16:27,486 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:16:27,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:27,529 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 [2020-10-26 04:16:27,533 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:16:27,534 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 04:16:27,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:27,575 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 04:16:27,585 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:16:27,585 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 04:16:27,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:27,627 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 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 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 04:16:27,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:16:27,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:16:27,903 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:16:27,904 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~j~0=-5, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=-5} Generalized eigenvectors: [{ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=-7, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=0, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~t~0=2, ULTIMATE.start_main_~i~0=0}] Lambdas: [0, 15, 0] Nus: [0, 0] 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 04:16:27,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:16:27,948 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:16:27,956 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:16:27,956 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: [] [2020-10-26 04:16:28,001 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,003 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-10-26 04:16:28,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-10-26 04:16:28,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-10-26 04:16:28,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:16:28 BoogieIcfgContainer [2020-10-26 04:16:28,018 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:16:28,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:16:28,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:16:28,019 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:16:28,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:16:26" (3/4) ... [2020-10-26 04:16:28,023 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-26 04:16:28,065 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:16:28,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:16:28,068 INFO L168 Benchmark]: Toolchain (without parser) took 2144.28 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.6 MB in the beginning and 33.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:28,069 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 39.8 MB. Free memory was 17.5 MB in the beginning and 17.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:16:28,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.09 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 31.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:28,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.81 ms. Allocated memory is still 52.4 MB. Free memory was 31.8 MB in the beginning and 30.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:28,071 INFO L168 Benchmark]: Boogie Preprocessor took 19.79 ms. Allocated memory is still 52.4 MB. Free memory was 30.6 MB in the beginning and 29.7 MB in the end (delta: 909.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:16:28,072 INFO L168 Benchmark]: RCFGBuilder took 228.37 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 36.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:28,073 INFO L168 Benchmark]: BuchiAutomizer took 1522.34 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 36.1 MB in the beginning and 35.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:28,074 INFO L168 Benchmark]: Witness Printer took 46.95 ms. Allocated memory is still 62.9 MB. Free memory was 35.0 MB in the beginning and 33.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:16:28,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 39.8 MB. Free memory was 17.5 MB in the beginning and 17.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.09 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 31.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.81 ms. Allocated memory is still 52.4 MB. Free memory was 31.8 MB in the beginning and 30.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.79 ms. Allocated memory is still 52.4 MB. Free memory was 30.6 MB in the beginning and 29.7 MB in the end (delta: 909.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 228.37 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 36.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1522.34 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 36.1 MB in the beginning and 35.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * Witness Printer took 46.95 ms. Allocated memory is still 62.9 MB. Free memory was 35.0 MB in the beginning and 33.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax161 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq214 hnf93 smp100 dnf276 smp100 tf100 neg93 sie114 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 13]: Nontermination argument in form of an infinite program execution. [2020-10-26 04:16:28,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,091 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-10-26 04:16:28,091 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,092 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-10-26 04:16:28,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-10-26 04:16:28,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-10-26 04:16:28,095 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,095 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-10-26 04:16:28,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-10-26 04:16:28,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6edff326=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71b4eeb8=0, ~unnamed0~0~false=0, i=0, j=0} State at position 1 is {t=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6edff326=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71b4eeb8=0, ~unnamed0~0~false=0, i=-5, j=-5} For i>1, the state at position i is {t=0 + sum_{k=0}^i -7*0^k + 2*0^k, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6edff326=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71b4eeb8=0 + sum_{k=0}^i 0, ~unnamed0~0~false=0 + sum_{k=0}^i 0, i=-5 + sum_{k=0}^i 0, j=-5 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [0, 15, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int t; [L9] i = __VERIFIER_nondet_int() [L10] j = __VERIFIER_nondet_int() [L11] t = 0 Loop: [L13] COND TRUE i != 0 && j != 0 [L14] t = i [L15] i = j [L16] j = t End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...