./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c -s /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer --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 f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:41:22,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:41:22,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:41:22,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:41:22,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:41:22,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:41:22,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:41:22,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:41:22,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:41:22,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:41:22,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:41:22,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:41:22,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:41:22,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:41:22,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:41:22,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:41:22,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:41:22,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:41:22,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:41:22,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:41:22,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:41:22,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:41:22,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:41:22,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:41:22,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:41:22,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:41:22,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:41:22,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:41:22,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:41:22,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:41:22,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:41:22,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:41:22,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:41:22,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:41:22,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:41:22,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:41:22,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:41:22,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:41:22,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:41:22,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:41:22,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:41:22,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 20:41:22,247 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:41:22,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:41:22,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:41:22,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:41:22,249 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:41:22,249 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:41:22,249 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:41:22,251 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:41:22,251 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:41:22,251 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:41:22,252 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:41:22,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:41:22,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:41:22,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:41:22,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:41:22,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:41:22,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:41:22,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:41:22,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:41:22,254 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:41:22,254 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:41:22,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:41:22,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:41:22,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:41:22,255 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:41:22,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:41:22,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:41:22,256 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:41:22,257 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:41:22,257 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer 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 -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2019-11-15 20:41:22,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:41:22,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:41:22,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:41:22,312 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:41:22,312 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:41:22,313 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-15 20:41:22,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/data/3de96d82d/fcc60774878f475d89f753aca7270456/FLAGf113acbfe [2019-11-15 20:41:22,715 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:41:22,715 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-15 20:41:22,720 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/data/3de96d82d/fcc60774878f475d89f753aca7270456/FLAGf113acbfe [2019-11-15 20:41:23,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/data/3de96d82d/fcc60774878f475d89f753aca7270456 [2019-11-15 20:41:23,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:41:23,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:41:23,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:41:23,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:41:23,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:41:23,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2258f497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23, skipping insertion in model container [2019-11-15 20:41:23,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,188 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:41:23,207 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:41:23,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:41:23,328 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:41:23,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:41:23,417 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:41:23,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23 WrapperNode [2019-11-15 20:41:23,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:41:23,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:41:23,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:41:23,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:41:23,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:41:23,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:41:23,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:41:23,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:41:23,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... [2019-11-15 20:41:23,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:41:23,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:41:23,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:41:23,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:41:23,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/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 [2019-11-15 20:41:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:41:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:41:23,689 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:41:23,690 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 20:41:23,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:41:23 BoogieIcfgContainer [2019-11-15 20:41:23,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:41:23,691 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:41:23,692 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:41:23,694 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:41:23,695 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:41:23,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:41:23" (1/3) ... [2019-11-15 20:41:23,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ed4665a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:41:23, skipping insertion in model container [2019-11-15 20:41:23,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:41:23,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:41:23" (2/3) ... [2019-11-15 20:41:23,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ed4665a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:41:23, skipping insertion in model container [2019-11-15 20:41:23,697 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:41:23,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:41:23" (3/3) ... [2019-11-15 20:41:23,700 INFO L371 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-15 20:41:23,749 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:41:23,749 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:41:23,749 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:41:23,750 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:41:23,750 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:41:23,750 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:41:23,750 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:41:23,752 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:41:23,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 20:41:23,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 20:41:23,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:41:23,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:41:23,787 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 20:41:23,788 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 20:41:23,788 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:41:23,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 20:41:23,789 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 20:41:23,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:41:23,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:41:23,790 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 20:41:23,790 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 20:41:23,797 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~y1~0, main_~y2~0;havoc main_~y1~0;havoc main_~y2~0;main_~y1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y2~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L20true assume main_~y1~0 >= 0 && main_~y2~0 >= 0; 10#L22-2true [2019-11-15 20:41:23,797 INFO L793 eck$LassoCheckResult]: Loop: 10#L22-2true assume !!(main_~y1~0 != main_~y2~0); 4#L22true assume main_~y1~0 > main_~y2~0;main_~y1~0 := main_~y1~0 - main_~y2~0; 10#L22-2true [2019-11-15 20:41:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:41:23,802 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-15 20:41:23,810 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:41:23,810 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40734726] [2019-11-15 20:41:23,810 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:41:23,810 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:41:23,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:41:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:41:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:41:23,892 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:41:23,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:41:23,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2019-11-15 20:41:23,893 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:41:23,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664660365] [2019-11-15 20:41:23,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:41:23,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:41:23,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:41:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:41:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:41:23,905 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:41:23,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:41:23,906 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2019-11-15 20:41:23,907 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:41:23,907 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720535148] [2019-11-15 20:41:23,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:41:23,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:41:23,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:41:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:41:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:41:23,919 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:41:24,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:41:24 BoogieIcfgContainer [2019-11-15 20:41:24,036 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:41:24,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:41:24,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:41:24,037 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:41:24,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:41:23" (3/4) ... [2019-11-15 20:41:24,039 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 20:41:24,103 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_150f9f10-341a-4991-bfa6-3887c3953b49/bin/uautomizer/witness.graphml [2019-11-15 20:41:24,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:41:24,108 INFO L168 Benchmark]: Toolchain (without parser) took 931.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:41:24,109 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:41:24,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -186.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:41:24,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:41:24,111 INFO L168 Benchmark]: Boogie Preprocessor took 14.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:41:24,112 INFO L168 Benchmark]: RCFGBuilder took 235.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:41:24,112 INFO L168 Benchmark]: BuchiAutomizer took 344.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:41:24,113 INFO L168 Benchmark]: Witness Printer took 67.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:41:24,115 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -186.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 235.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 344.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 67.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 21]: 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 {y2=0, y1=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4979d7e5=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73127673=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int y1, y2; [L18] y1 = __VERIFIER_nondet_int() [L19] y2 = __VERIFIER_nondet_int() [L20] COND TRUE y1 >= 0 && y2 >= 0 Loop: [L21] COND TRUE y1 != y2 [L22] COND TRUE y1 > y2 [L23] y1 = y1 - y2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...