./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_false-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_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_false-unreach-call2_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/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 64bcaa7dcfb14b395c299a14aa5941fba1dc63cc ................................................................................................................................................................................................................................................................................................. 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 08:22:32,578 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:22:32,579 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:22:32,585 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:22:32,585 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:22:32,585 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:22:32,586 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:22:32,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:22:32,589 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:22:32,589 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:22:32,590 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:22:32,590 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:22:32,591 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:22:32,592 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:22:32,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:22:32,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:22:32,594 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:22:32,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:22:32,596 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:22:32,598 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:22:32,598 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:22:32,599 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:22:32,601 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:22:32,601 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:22:32,601 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:22:32,602 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:22:32,602 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:22:32,603 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:22:32,603 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:22:32,604 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:22:32,604 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:22:32,604 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:22:32,604 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:22:32,605 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:22:32,605 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:22:32,606 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:22:32,606 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 08:22:32,614 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:22:32,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:22:32,615 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:22:32,615 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:22:32,615 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:22:32,615 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 08:22:32,615 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 08:22:32,615 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 08:22:32,616 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 08:22:32,616 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 08:22:32,616 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 08:22:32,616 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:22:32,616 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:22:32,616 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 08:22:32,616 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:22:32,616 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:22:32,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:22:32,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 08:22:32,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 08:22:32,617 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 08:22:32,617 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:22:32,617 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 08:22:32,617 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 08:22:32,617 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:22:32,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 08:22:32,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:22:32,618 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:22:32,618 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 08:22:32,618 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:22:32,618 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:22:32,618 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 08:22:32,619 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 08:22:32,619 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_935a72d3-4f17-41c2-897e-c840a7d34bde/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 -> 64bcaa7dcfb14b395c299a14aa5941fba1dc63cc [2018-12-08 08:22:32,640 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:22:32,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:22:32,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:22:32,653 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:22:32,654 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:22:32,654 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/../../sv-benchmarks/c/loop-acceleration/phases_false-unreach-call2_false-termination.i [2018-12-08 08:22:32,693 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/data/ba134a89f/ca906f3810c84f659788c72009bac3f3/FLAG31db7ed7d [2018-12-08 08:22:33,084 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:22:33,084 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/sv-benchmarks/c/loop-acceleration/phases_false-unreach-call2_false-termination.i [2018-12-08 08:22:33,088 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/data/ba134a89f/ca906f3810c84f659788c72009bac3f3/FLAG31db7ed7d [2018-12-08 08:22:33,096 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/data/ba134a89f/ca906f3810c84f659788c72009bac3f3 [2018-12-08 08:22:33,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:22:33,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 08:22:33,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:22:33,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:22:33,101 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:22:33,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432dabb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33, skipping insertion in model container [2018-12-08 08:22:33,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:22:33,116 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:22:33,200 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:22:33,202 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:22:33,211 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:22:33,219 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:22:33,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33 WrapperNode [2018-12-08 08:22:33,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:22:33,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 08:22:33,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 08:22:33,220 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 08:22:33,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 08:22:33,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:22:33,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:22:33,237 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:22:33,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... [2018-12-08 08:22:33,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:22:33,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:22:33,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:22:33,276 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:22:33,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/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 08:22:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:22:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:22:33,430 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:22:33,431 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-08 08:22:33,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:22:33 BoogieIcfgContainer [2018-12-08 08:22:33,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:22:33,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 08:22:33,432 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 08:22:33,434 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 08:22:33,435 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:22:33,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 08:22:33" (1/3) ... [2018-12-08 08:22:33,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@281bd5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 08:22:33, skipping insertion in model container [2018-12-08 08:22:33,435 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:22:33,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:22:33" (2/3) ... [2018-12-08 08:22:33,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@281bd5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 08:22:33, skipping insertion in model container [2018-12-08 08:22:33,436 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:22:33,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:22:33" (3/3) ... [2018-12-08 08:22:33,437 INFO L375 chiAutomizerObserver]: Analyzing ICFG phases_false-unreach-call2_false-termination.i [2018-12-08 08:22:33,471 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:22:33,471 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 08:22:33,471 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 08:22:33,471 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 08:22:33,471 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:22:33,471 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:22:33,471 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 08:22:33,472 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:22:33,472 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 08:22:33,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-08 08:22:33,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 08:22:33,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:22:33,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:22:33,500 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 08:22:33,500 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 08:22:33,500 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 08:22:33,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-08 08:22:33,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 08:22:33,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:22:33,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:22:33,502 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 08:22:33,502 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 08:22:33,507 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~x~0, main_~y~0;main_~x~0 := 1;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L13true assume !!(main_~y~0 % 4294967296 > 0); 10#L15-2true [2018-12-08 08:22:33,507 INFO L796 eck$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 08:22:33,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:22:33,510 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2018-12-08 08:22:33,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:22:33,512 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:22:33,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:22:33,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:22:33,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:22:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:22:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:22:33,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:22:33,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1444, now seen corresponding path program 1 times [2018-12-08 08:22:33,576 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:22:33,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:22:33,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:22:33,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:22:33,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:22:33,579 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-08 08:22:33,580 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-08 08:22:33,580 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/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 08:22:33,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:22:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:22:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:22:33,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:22:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash 959561, now seen corresponding path program 1 times [2018-12-08 08:22:33,617 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:22:33,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:22:33,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:22:33,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:22:33,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:22:33,621 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-08 08:22:33,621 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-08 08:22:33,621 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/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 08:22:33,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:22:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:22:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:22:34,094 WARN L180 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-12-08 08:22:34,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 08:22:34 BoogieIcfgContainer [2018-12-08 08:22:34,125 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 08:22:34,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:22:34,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:22:34,126 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:22:34,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:22:33" (3/4) ... [2018-12-08 08:22:34,128 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-08 08:22:34,150 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_935a72d3-4f17-41c2-897e-c840a7d34bde/bin-2019/uautomizer/witness.graphml [2018-12-08 08:22:34,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:22:34,151 INFO L168 Benchmark]: Toolchain (without parser) took 1053.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -92.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-08 08:22:34,152 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:22:34,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.27 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 944.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 08:22:34,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.14 ms. Allocated memory is still 1.0 GB. Free memory is still 944.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:22:34,153 INFO L168 Benchmark]: Boogie Preprocessor took 38.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -156.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-08 08:22:34,154 INFO L168 Benchmark]: RCFGBuilder took 155.73 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: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2018-12-08 08:22:34,154 INFO L168 Benchmark]: BuchiAutomizer took 694.13 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: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. [2018-12-08 08:22:34,155 INFO L168 Benchmark]: Witness Printer took 24.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:22:34,157 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.27 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 944.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.14 ms. Allocated memory is still 1.0 GB. Free memory is still 944.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -156.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 155.73 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: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 694.13 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: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. * Witness Printer took 24.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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 0.6s. 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@59a51cc8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5c4544a6=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...