./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 ................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-07 17:19:24,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:19:24,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:19:24,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:19:24,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:19:24,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:19:24,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:19:24,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:19:24,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:19:24,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:19:24,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:19:24,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:19:24,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:19:24,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:19:24,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:19:24,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:19:24,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:19:24,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:19:24,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:19:24,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:19:24,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:19:24,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:19:24,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:19:24,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:19:24,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:19:24,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:19:24,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:19:24,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:19:24,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:19:24,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:19:24,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:19:24,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:19:24,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:19:24,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:19:24,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:19:24,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:19:24,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:19:24,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:19:24,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:19:24,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:19:24,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:19:24,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 17:19:24,283 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:19:24,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:19:24,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:19:24,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:19:24,284 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:19:24,284 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:19:24,284 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:19:24,284 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:19:24,284 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:19:24,285 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:19:24,285 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:19:24,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:19:24,285 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:19:24,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:19:24,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:19:24,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:19:24,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:19:24,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:19:24,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:19:24,286 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:19:24,286 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:19:24,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:19:24,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:19:24,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:19:24,286 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:19:24,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:19:24,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:19:24,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:19:24,287 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:19:24,287 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:19:24,287 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_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 [2019-12-07 17:19:24,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:19:24,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:19:24,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:19:24,402 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:19:24,403 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:19:24,403 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2019-12-07 17:19:24,449 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/data/9d2c90b39/790d3689eddb4143ba68ecbf9fd0d24e/FLAG5dbdf6610 [2019-12-07 17:19:24,843 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:19:24,843 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2019-12-07 17:19:24,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/data/9d2c90b39/790d3689eddb4143ba68ecbf9fd0d24e/FLAG5dbdf6610 [2019-12-07 17:19:24,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/data/9d2c90b39/790d3689eddb4143ba68ecbf9fd0d24e [2019-12-07 17:19:24,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:19:24,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:19:24,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:19:24,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:19:24,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:19:24,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:19:24" (1/1) ... [2019-12-07 17:19:24,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354778c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:24, skipping insertion in model container [2019-12-07 17:19:24,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:19:24" (1/1) ... [2019-12-07 17:19:24,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:19:24,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:19:24,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:19:24,980 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:19:25,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:19:25,031 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:19:25,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25 WrapperNode [2019-12-07 17:19:25,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:19:25,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:19:25,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:19:25,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:19:25,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:19:25,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:19:25,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:19:25,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:19:25,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... [2019-12-07 17:19:25,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:19:25,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:19:25,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:19:25,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:19:25,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/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 [2019-12-07 17:19:25,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:19:25,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:19:25,181 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:19:25,181 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 17:19:25,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:19:25 BoogieIcfgContainer [2019-12-07 17:19:25,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:19:25,182 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:19:25,182 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:19:25,185 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:19:25,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:19:25,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:19:24" (1/3) ... [2019-12-07 17:19:25,186 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bd085f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:19:25, skipping insertion in model container [2019-12-07 17:19:25,186 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:19:25,186 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:19:25" (2/3) ... [2019-12-07 17:19:25,186 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bd085f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:19:25, skipping insertion in model container [2019-12-07 17:19:25,186 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:19:25,186 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:19:25" (3/3) ... [2019-12-07 17:19:25,187 INFO L371 chiAutomizerObserver]: Analyzing ICFG NonTerminationSimple7.c [2019-12-07 17:19:25,216 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:19:25,216 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:19:25,216 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:19:25,216 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:19:25,216 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:19:25,216 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:19:25,216 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:19:25,216 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:19:25,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 17:19:25,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 17:19:25,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:19:25,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:19:25,241 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 17:19:25,241 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:19:25,242 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:19:25,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 17:19:25,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 17:19:25,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:19:25,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:19:25,242 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 17:19:25,243 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:19:25,247 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0;havoc main_~c~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L15true assume 0 == main_~c~0; 7#L16-2true [2019-12-07 17:19:25,247 INFO L796 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 + main_~c~0; 7#L16-2true [2019-12-07 17:19:25,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:25,251 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-12-07 17:19:25,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:19:25,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360885802] [2019-12-07 17:19:25,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:19:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:19:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:19:25,320 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:19:25,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:25,321 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2019-12-07 17:19:25,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:19:25,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130676571] [2019-12-07 17:19:25,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:19:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:19:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:19:25,329 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:19:25,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:19:25,330 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2019-12-07 17:19:25,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:19:25,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233022179] [2019-12-07 17:19:25,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:19:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:19:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:19:25,341 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:19:25,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:19:25 BoogieIcfgContainer [2019-12-07 17:19:25,390 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:19:25,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:19:25,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:19:25,390 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:19:25,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:19:25" (3/4) ... [2019-12-07 17:19:25,393 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:19:25,420 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8bd6f7d9-67d3-4bf0-a2ac-0e28595e0ff5/bin/uautomizer/witness.graphml [2019-12-07 17:19:25,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:19:25,422 INFO L168 Benchmark]: Toolchain (without parser) took 562.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -118.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:19:25,422 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:19:25,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:19:25,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:19:25,423 INFO L168 Benchmark]: Boogie Preprocessor took 11.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:19:25,424 INFO L168 Benchmark]: RCFGBuilder took 119.04 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:19:25,424 INFO L168 Benchmark]: BuchiAutomizer took 207.53 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:19:25,425 INFO L168 Benchmark]: Witness Printer took 30.16 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:19:25,428 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 119.04 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 207.53 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 30.16 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: 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 0.1s and 1 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 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: 16]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fb0d72f=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@218d0a49=0, c=0, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int c, x; [L13] x = __VERIFIER_nondet_int() [L14] c = __VERIFIER_nondet_int() [L15] COND TRUE c == 0 Loop: [L16] COND TRUE x >= 0 [L17] x = x + c End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...