./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_true-unreach-call2_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_true-unreach-call2_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/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 32bit --witnessprinter.graph.data.programhash 4a156731963582ce9a466285688eba3a68b58029 ..................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-08 09:05:39,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 09:05:39,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 09:05:39,343 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 09:05:39,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 09:05:39,343 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 09:05:39,344 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 09:05:39,345 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 09:05:39,345 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 09:05:39,346 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 09:05:39,346 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 09:05:39,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 09:05:39,347 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 09:05:39,347 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 09:05:39,347 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 09:05:39,348 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 09:05:39,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 09:05:39,349 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 09:05:39,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 09:05:39,350 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 09:05:39,351 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 09:05:39,352 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 09:05:39,353 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 09:05:39,353 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 09:05:39,353 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 09:05:39,353 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 09:05:39,354 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 09:05:39,354 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 09:05:39,354 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 09:05:39,355 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 09:05:39,355 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 09:05:39,355 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 09:05:39,355 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 09:05:39,355 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 09:05:39,356 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 09:05:39,356 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 09:05:39,356 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 09:05:39,363 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 09:05:39,363 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 09:05:39,364 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 09:05:39,364 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 09:05:39,364 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 09:05:39,364 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 09:05:39,365 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 09:05:39,365 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 09:05:39,366 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 09:05:39,366 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 09:05:39,366 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 09:05:39,367 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 09:05:39,367 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 09:05:39,367 INFO L133 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/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a156731963582ce9a466285688eba3a68b58029 [2018-12-08 09:05:39,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 09:05:39,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 09:05:39,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 09:05:39,397 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 09:05:39,398 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 09:05:39,398 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/../../sv-benchmarks/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-12-08 09:05:39,436 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/data/b3ba3ea10/4274a43e7f784e1a991a68010ea383d8/FLAG4e895ec6d [2018-12-08 09:05:39,814 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 09:05:39,814 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/sv-benchmarks/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-12-08 09:05:39,818 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/data/b3ba3ea10/4274a43e7f784e1a991a68010ea383d8/FLAG4e895ec6d [2018-12-08 09:05:39,826 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/data/b3ba3ea10/4274a43e7f784e1a991a68010ea383d8 [2018-12-08 09:05:39,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 09:05:39,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 09:05:39,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 09:05:39,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 09:05:39,831 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 09:05:39,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39, skipping insertion in model container [2018-12-08 09:05:39,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 09:05:39,846 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 09:05:39,927 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:05:39,929 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 09:05:39,937 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:05:39,945 INFO L195 MainTranslator]: Completed translation [2018-12-08 09:05:39,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39 WrapperNode [2018-12-08 09:05:39,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 09:05:39,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 09:05:39,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 09:05:39,946 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 09:05:39,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 09:05:39,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 09:05:39,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 09:05:39,964 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 09:05:39,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... [2018-12-08 09:05:39,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 09:05:39,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 09:05:39,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 09:05:39,975 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 09:05:39,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/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 [2018-12-08 09:05:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 09:05:40,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 09:05:40,149 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 09:05:40,149 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-08 09:05:40,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:05:40 BoogieIcfgContainer [2018-12-08 09:05:40,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 09:05:40,150 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 09:05:40,150 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 09:05:40,152 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 09:05:40,153 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 09:05:40,153 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 09:05:39" (1/3) ... [2018-12-08 09:05:40,154 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f5e4fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 09:05:40, skipping insertion in model container [2018-12-08 09:05:40,154 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 09:05:40,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:05:39" (2/3) ... [2018-12-08 09:05:40,154 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f5e4fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 09:05:40, skipping insertion in model container [2018-12-08 09:05:40,154 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 09:05:40,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:05:40" (3/3) ... [2018-12-08 09:05:40,155 INFO L375 chiAutomizerObserver]: Analyzing ICFG phases_true-unreach-call2_false-termination.i [2018-12-08 09:05:40,190 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 09:05:40,191 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 09:05:40,191 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 09:05:40,191 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 09:05:40,191 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 09:05:40,191 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 09:05:40,191 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 09:05:40,191 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 09:05:40,191 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 09:05:40,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-08 09:05:40,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 09:05:40,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 09:05:40,212 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 09:05:40,216 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 09:05:40,216 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 09:05:40,216 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 09:05:40,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-08 09:05:40,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 09:05:40,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 09:05:40,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 09:05:40,218 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 09:05:40,218 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 09:05:40,223 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~x~0, main_~y~0;main_~x~0 := 1;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L13true assume !!(main_~y~0 % 4294967296 > 0); 10#L15-2true [2018-12-08 09:05:40,223 INFO L796 eck$LassoCheckResult]: Loop: 10#L15-2true assume !!(main_~x~0 % 4294967296 < main_~y~0 % 4294967296); 3#L15true assume main_~x~0 % 4294967296 < (if main_~y~0 % 4294967296 < 0 && 0 != main_~y~0 % 4294967296 % (main_~x~0 % 4294967296) then (if main_~x~0 % 4294967296 < 0 then main_~y~0 % 4294967296 / (main_~x~0 % 4294967296) - 1 else 1 + main_~y~0 % 4294967296 / (main_~x~0 % 4294967296)) else main_~y~0 % 4294967296 / (main_~x~0 % 4294967296)) % 4294967296;main_~x~0 := main_~x~0 * main_~x~0; 10#L15-2true [2018-12-08 09:05:40,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:05:40,227 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2018-12-08 09:05:40,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:05:40,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:05:40,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:05:40,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:05:40,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:05:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:05:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:05:40,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:05:40,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1444, now seen corresponding path program 1 times [2018-12-08 09:05:40,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:05:40,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:05:40,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:05:40,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:05:40,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:05:40,293 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-08 09:05:40,293 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-08 09:05:40,293 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-08 09:05:40,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:05:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:05:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:05:40,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:05:40,326 INFO L82 PathProgramCache]: Analyzing trace with hash 959561, now seen corresponding path program 1 times [2018-12-08 09:05:40,326 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:05:40,326 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:05:40,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:05:40,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:05:40,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:05:40,329 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-08 09:05:40,329 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-08 09:05:40,329 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-08 09:05:40,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:05:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:05:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:05:40,799 WARN L180 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-12-08 09:05:40,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 09:05:40 BoogieIcfgContainer [2018-12-08 09:05:40,827 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 09:05:40,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:05:40,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:05:40,827 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:05:40,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:05:40" (3/4) ... [2018-12-08 09:05:40,829 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-08 09:05:40,850 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1c2a728d-822f-4479-9fdf-11aac630e58c/bin-2019/uautomizer/witness.graphml [2018-12-08 09:05:40,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:05:40,851 INFO L168 Benchmark]: Toolchain (without parser) took 1023.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -106.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2018-12-08 09:05:40,852 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:05:40,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.46 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-08 09:05:40,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.23 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:05:40,852 INFO L168 Benchmark]: Boogie Preprocessor took 10.62 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 09:05:40,853 INFO L168 Benchmark]: RCFGBuilder took 174.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-08 09:05:40,853 INFO L168 Benchmark]: BuchiAutomizer took 677.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. [2018-12-08 09:05:40,853 INFO L168 Benchmark]: Witness Printer took 23.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 09:05:40,855 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.46 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.23 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.62 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 174.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 677.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. * Witness Printer took 23.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 14]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58178cee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7021b995=0, x=1, y=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] unsigned int x = 1; [L12] unsigned int y = __VERIFIER_nondet_uint(); [L13] COND FALSE !(!(y > 0)) Loop: [L14] COND TRUE x < y [L15] COND TRUE x < y / x [L16] x *= x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...