./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c28500fb39e284eb130c0904f2ebec477741685a ............................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:48,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:48,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:48,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:48,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:48,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:48,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:48,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:48,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:48,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:48,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:48,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:48,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:48,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:48,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:48,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:48,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:48,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:48,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:48,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:48,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:48,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:48,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:48,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:48,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:48,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:48,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:48,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:48,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:48,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:48,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:48,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:48,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:48,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:48,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:48,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:48,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:48,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:48,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:48,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:48,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:48,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:53:48,461 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:48,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:48,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:48,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:48,463 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:48,463 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:53:48,464 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:53:48,464 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:53:48,464 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:53:48,464 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:53:48,464 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:53:48,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:48,465 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:48,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:53:48,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:48,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:48,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:48,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:53:48,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:53:48,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:53:48,467 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:48,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:48,467 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:53:48,467 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:48,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:53:48,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:48,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:48,468 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:53:48,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:48,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:48,469 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:53:48,470 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:53:48,470 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c28500fb39e284eb130c0904f2ebec477741685a [2019-11-25 08:53:48,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:48,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:48,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:48,620 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:48,621 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:48,622 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_1.c [2019-11-25 08:53:48,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/data/b23c4d2d2/7a28f5e175a24809b716df0da9395414/FLAG73779d583 [2019-11-25 08:53:49,063 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:49,063 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/sv-benchmarks/c/loops/while_infinite_loop_1.c [2019-11-25 08:53:49,070 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/data/b23c4d2d2/7a28f5e175a24809b716df0da9395414/FLAG73779d583 [2019-11-25 08:53:49,485 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/data/b23c4d2d2/7a28f5e175a24809b716df0da9395414 [2019-11-25 08:53:49,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:49,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:49,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:49,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:49,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:49,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217d9c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49, skipping insertion in model container [2019-11-25 08:53:49,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:49,530 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:49,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:49,777 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:49,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:49,802 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:49,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49 WrapperNode [2019-11-25 08:53:49,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:49,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:49,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:49,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:49,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:49,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:49,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:49,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:49,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... [2019-11-25 08:53:49,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:49,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:49,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:49,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:49,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:53:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:50,042 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:50,043 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 08:53:50,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:50 BoogieIcfgContainer [2019-11-25 08:53:50,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:50,044 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:53:50,044 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:53:50,048 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:53:50,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:50,049 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:53:49" (1/3) ... [2019-11-25 08:53:50,050 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@556f5a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:53:50, skipping insertion in model container [2019-11-25 08:53:50,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:50,051 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:49" (2/3) ... [2019-11-25 08:53:50,051 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@556f5a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:53:50, skipping insertion in model container [2019-11-25 08:53:50,051 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:53:50,051 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:50" (3/3) ... [2019-11-25 08:53:50,053 INFO L371 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_1.c [2019-11-25 08:53:50,098 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:53:50,098 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:53:50,098 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:53:50,099 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:50,099 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:50,099 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:53:50,099 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:50,099 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:53:50,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-25 08:53:50,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:53:50,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:50,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:50,141 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:53:50,141 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:53:50,141 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:53:50,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-25 08:53:50,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:53:50,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:53:50,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:53:50,144 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:53:50,144 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:53:50,151 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~x~0;main_~x~0 := 0; 9#L4-2true [2019-11-25 08:53:50,151 INFO L796 eck$LassoCheckResult]: Loop: 9#L4-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 11#L4true assume !(0 == __VERIFIER_assert_~cond); 9#L4-2true [2019-11-25 08:53:50,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:50,156 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:53:50,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:50,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468077838] [2019-11-25 08:53:50,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:50,243 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:50,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-25 08:53:50,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:50,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545127553] [2019-11-25 08:53:50,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:50,260 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:50,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:50,262 INFO L82 PathProgramCache]: Analyzing trace with hash 31079, now seen corresponding path program 1 times [2019-11-25 08:53:50,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:50,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642764000] [2019-11-25 08:53:50,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:50,272 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:50,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:53:50 BoogieIcfgContainer [2019-11-25 08:53:50,406 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:53:50,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:50,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:50,406 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:50,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:50" (3/4) ... [2019-11-25 08:53:50,409 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:53:50,445 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8571b3f5-a77e-4ea8-8c89-29c0b080230d/bin/uautomizer/witness.graphml [2019-11-25 08:53:50,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:50,447 INFO L168 Benchmark]: Toolchain (without parser) took 958.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:50,447 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:50,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:50,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:50,449 INFO L168 Benchmark]: Boogie Preprocessor took 17.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:50,450 INFO L168 Benchmark]: RCFGBuilder took 191.31 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: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:50,450 INFO L168 Benchmark]: BuchiAutomizer took 361.37 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:50,451 INFO L168 Benchmark]: Witness Printer took 39.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:50,454 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 191.31 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: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 361.37 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 1]: 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 {cond=1, \result=0, \old(cond)=1, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 3]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] int x=0; Loop: [L13] COND TRUE 1 [L4] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...