./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/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 66fc6b12b7cd24de7373fe06aeeb5aec1e7e0e8b ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:44:30,109 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:44:30,110 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:44:30,117 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:44:30,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:44:30,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:44:30,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:44:30,119 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:44:30,120 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:44:30,121 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:44:30,121 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:44:30,121 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:44:30,122 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:44:30,122 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:44:30,123 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:44:30,123 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:44:30,123 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:44:30,125 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:44:30,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:44:30,127 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:44:30,128 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:44:30,128 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:44:30,129 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:44:30,129 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:44:30,129 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:44:30,130 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:44:30,131 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:44:30,131 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:44:30,131 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:44:30,132 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:44:30,132 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:44:30,133 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:44:30,133 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:44:30,133 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:44:30,134 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:44:30,134 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:44:30,134 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 10:44:30,142 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:44:30,142 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:44:30,143 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:44:30,143 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:44:30,144 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:44:30,144 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 10:44:30,144 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 10:44:30,144 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 10:44:30,144 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 10:44:30,144 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 10:44:30,144 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 10:44:30,145 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:44:30,145 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:44:30,145 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:44:30,145 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:44:30,145 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:44:30,145 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:44:30,146 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 10:44:30,146 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 10:44:30,146 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 10:44:30,146 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:44:30,146 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:44:30,146 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 10:44:30,146 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:44:30,147 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 10:44:30,147 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:44:30,147 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:44:30,149 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 10:44:30,149 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:44:30,149 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:44:30,150 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 10:44:30,150 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 10:44:30,150 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_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/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 -> 66fc6b12b7cd24de7373fe06aeeb5aec1e7e0e8b [2018-11-28 10:44:30,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:44:30,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:44:30,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:44:30,188 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:44:30,188 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:44:30,189 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-28 10:44:30,232 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/data/0a2c82f3e/41daeedff60f496f9f4793a8c576bbff/FLAGf6ccff0fb [2018-11-28 10:44:30,619 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:44:30,619 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/sv-benchmarks/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-28 10:44:30,623 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/data/0a2c82f3e/41daeedff60f496f9f4793a8c576bbff/FLAGf6ccff0fb [2018-11-28 10:44:30,631 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/bin-2019/uautomizer/data/0a2c82f3e/41daeedff60f496f9f4793a8c576bbff [2018-11-28 10:44:30,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:44:30,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:44:30,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:44:30,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:44:30,637 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:44:30,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e66137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30, skipping insertion in model container [2018-11-28 10:44:30,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:44:30,654 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:44:30,743 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:44:30,747 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:44:30,755 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:44:30,763 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:44:30,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30 WrapperNode [2018-11-28 10:44:30,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:44:30,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:44:30,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:44:30,764 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:44:30,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:44:30,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:44:30,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:44:30,786 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:44:30,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... [2018-11-28 10:44:30,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:44:30,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:44:30,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:44:30,836 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:44:30,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84b3033e-c8a1-4158-ab5a-3ad2982b81f3/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 [2018-11-28 10:44:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:44:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:44:30,970 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:44:30,971 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 10:44:30,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:30 BoogieIcfgContainer [2018-11-28 10:44:30,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:44:30,972 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 10:44:30,972 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 10:44:30,975 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 10:44:30,975 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:44:30,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 10:44:30" (1/3) ... [2018-11-28 10:44:30,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1467a758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:44:30, skipping insertion in model container [2018-11-28 10:44:30,976 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:44:30,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:44:30" (2/3) ... [2018-11-28 10:44:30,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1467a758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:44:30, skipping insertion in model container [2018-11-28 10:44:30,977 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:44:30,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:30" (3/3) ... [2018-11-28 10:44:30,978 INFO L375 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_4_false-unreach-call_true-termination.i [2018-11-28 10:44:31,025 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:44:31,026 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 10:44:31,026 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 10:44:31,026 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 10:44:31,026 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:44:31,026 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:44:31,026 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 10:44:31,027 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:44:31,027 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 10:44:31,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 10:44:31,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 10:44:31,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:44:31,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:44:31,063 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:44:31,063 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 10:44:31,063 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 10:44:31,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 10:44:31,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 10:44:31,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:44:31,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:44:31,065 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:44:31,065 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 10:44:31,072 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue ~x~0 := 0; 4#L-1true havoc main_#res; 12#L4-2true [2018-11-28 10:44:31,072 INFO L796 eck$LassoCheckResult]: Loop: 12#L4-2true assume !false; 14#L14loopEntrytrue assume false; 10#L14-2true __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 16#L4true assume !(0 == __VERIFIER_assert_~cond); 12#L4-2true [2018-11-28 10:44:31,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:31,077 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-28 10:44:31,079 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:31,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:31,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:31,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:31,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:31,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:31,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1269327, now seen corresponding path program 1 times [2018-11-28 10:44:31,157 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:31,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:31,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:31,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:31,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:31,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:44:31,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:44:31,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:44:31,178 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 10:44:31,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 10:44:31,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 10:44:31,190 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2018-11-28 10:44:31,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:44:31,193 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-11-28 10:44:31,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 10:44:31,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2018-11-28 10:44:31,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 10:44:31,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 6 transitions. [2018-11-28 10:44:31,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 10:44:31,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-28 10:44:31,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2018-11-28 10:44:31,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:44:31,199 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-11-28 10:44:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2018-11-28 10:44:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-11-28 10:44:31,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 10:44:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-11-28 10:44:31,220 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-11-28 10:44:31,220 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-11-28 10:44:31,220 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 10:44:31,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2018-11-28 10:44:31,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 10:44:31,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:44:31,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:44:31,221 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:44:31,221 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 10:44:31,221 INFO L794 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY ~x~0 := 0; 29#L-1 havoc main_#res; 30#L4-2 [2018-11-28 10:44:31,221 INFO L796 eck$LassoCheckResult]: Loop: 30#L4-2 assume !false; 34#L14loopEntry assume !false;~x~0 := 1; 32#L14-2 __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 33#L4 assume !(0 == __VERIFIER_assert_~cond); 30#L4-2 [2018-11-28 10:44:31,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:31,222 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-28 10:44:31,222 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:31,222 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:31,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:31,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:44:31,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:44:31,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:44:31,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1271249, now seen corresponding path program 1 times [2018-11-28 10:44:31,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:44:31,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:44:31,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:31,227 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 10:44:31,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:44:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:44:31,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:44:31,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:44:31,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 10:44:31,270 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 10:44:31,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 10:44:31,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 10:44:31,270 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. cyclomatic complexity: 1 Second operand 4 states. [2018-11-28 10:44:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:44:31,288 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2018-11-28 10:44:31,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 10:44:31,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2018-11-28 10:44:31,289 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:44:31,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2018-11-28 10:44:31,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 10:44:31,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 10:44:31,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 10:44:31,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:44:31,289 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:44:31,289 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:44:31,289 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:44:31,289 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 10:44:31,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 10:44:31,290 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:44:31,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 10:44:31,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 10:44:31 BoogieIcfgContainer [2018-11-28 10:44:31,293 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 10:44:31,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:44:31,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:44:31,294 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:44:31,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:44:30" (3/4) ... [2018-11-28 10:44:31,297 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 10:44:31,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:44:31,298 INFO L168 Benchmark]: Toolchain (without parser) took 664.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 952.6 MB in the beginning and 1.1 GB in the end (delta: -130.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:44:31,299 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:44:31,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.16 ms. Allocated memory is still 1.0 GB. Free memory was 952.6 MB in the beginning and 941.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:31,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.29 ms. Allocated memory is still 1.0 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:44:31,301 INFO L168 Benchmark]: Boogie Preprocessor took 49.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:31,302 INFO L168 Benchmark]: RCFGBuilder took 135.76 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:31,302 INFO L168 Benchmark]: BuchiAutomizer took 321.90 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:31,304 INFO L168 Benchmark]: Witness Printer took 3.51 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 10:44:31,309 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 979.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.16 ms. Allocated memory is still 1.0 GB. Free memory was 952.6 MB in the beginning and 941.8 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 22.29 ms. Allocated memory is still 1.0 GB. Free memory is still 941.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.76 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 321.90 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.51 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...