./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/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 2c72d82c532a02e29872b33df90bf95e27cdfe45 .......................................................................................................................................................................................................................................................................... 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-cad4683 [2019-10-22 09:01:36,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:36,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:36,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:36,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:36,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:36,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:36,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:36,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:36,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:36,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:36,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:36,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:36,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:36,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:36,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:36,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:36,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:36,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:36,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:36,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:36,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:36,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:36,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:36,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:36,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:36,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:36,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:36,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:36,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:36,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:36,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:36,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:36,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:36,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:36,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:36,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:36,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:36,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:36,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:36,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:36,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:01:36,291 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:36,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:36,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:36,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:36,293 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:36,294 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:36,294 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:36,294 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:36,294 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:36,294 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:36,294 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:36,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:36,295 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:36,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:36,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:36,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:36,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:36,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:36,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:36,296 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:36,296 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:36,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:36,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:36,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:36,296 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:36,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:36,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:36,297 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:36,298 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:36,298 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/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/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 -> 2c72d82c532a02e29872b33df90bf95e27cdfe45 [2019-10-22 09:01:36,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:36,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:36,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:36,336 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:36,336 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:36,337 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Rotation180-1.c [2019-10-22 09:01:36,384 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/data/2b22a2561/7c22559055cd461aa67a8b4f9dee3f13/FLAG0c74aecd5 [2019-10-22 09:01:36,709 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:36,709 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/sv-benchmarks/c/termination-crafted/Rotation180-1.c [2019-10-22 09:01:36,714 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/data/2b22a2561/7c22559055cd461aa67a8b4f9dee3f13/FLAG0c74aecd5 [2019-10-22 09:01:36,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/data/2b22a2561/7c22559055cd461aa67a8b4f9dee3f13 [2019-10-22 09:01:36,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:36,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:36,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:36,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:36,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:36,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d76dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36, skipping insertion in model container [2019-10-22 09:01:36,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,745 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:36,760 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:36,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:36,881 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:36,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:36,957 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:36,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36 WrapperNode [2019-10-22 09:01:36,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:36,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:36,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:36,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:36,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:36,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:36,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:36,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:36,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... [2019-10-22 09:01:36,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:37,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:37,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:37,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:37,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/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 [2019-10-22 09:01:37,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:37,214 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:37,214 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 09:01:37,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:37 BoogieIcfgContainer [2019-10-22 09:01:37,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:37,216 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:37,216 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:37,219 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:37,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:37,220 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:36" (1/3) ... [2019-10-22 09:01:37,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@525d8a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:37, skipping insertion in model container [2019-10-22 09:01:37,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:37,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:36" (2/3) ... [2019-10-22 09:01:37,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@525d8a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:37, skipping insertion in model container [2019-10-22 09:01:37,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:37,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:37" (3/3) ... [2019-10-22 09:01:37,224 INFO L371 chiAutomizerObserver]: Analyzing ICFG Rotation180-1.c [2019-10-22 09:01:37,305 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:37,306 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:37,306 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:37,306 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:37,306 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:37,306 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:37,306 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:37,306 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:37,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-10-22 09:01:37,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 09:01:37,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:37,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:37,369 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:01:37,369 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 09:01:37,369 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:37,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-10-22 09:01:37,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 09:01:37,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:37,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:37,370 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-10-22 09:01:37,371 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 09:01:37,377 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~oldx~0, main_~x~0, main_~y~0;havoc main_~oldx~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L21true assume !!(main_~x~0 >= -2147483647); 6#L22true assume !!(main_~y~0 >= -2147483647); 4#L23-2true [2019-10-22 09:01:37,378 INFO L793 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(0 != ~unnamed0~0~true);main_~oldx~0 := main_~x~0;main_~x~0 := -main_~y~0;main_~y~0 := main_~oldx~0; 4#L23-2true [2019-10-22 09:01:37,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:37,383 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2019-10-22 09:01:37,390 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:37,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547624027] [2019-10-22 09:01:37,390 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:37,390 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:37,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:37,513 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:37,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:37,515 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2019-10-22 09:01:37,515 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:37,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912494767] [2019-10-22 09:01:37,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:37,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:37,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:37,526 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:37,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:37,528 INFO L82 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2019-10-22 09:01:37,528 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:37,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948158632] [2019-10-22 09:01:37,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:37,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:37,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:37,549 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:37,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:37 BoogieIcfgContainer [2019-10-22 09:01:37,693 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:37,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:37,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:37,694 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:37,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:37" (3/4) ... [2019-10-22 09:01:37,697 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 09:01:37,735 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2d70e7df-03bb-4747-9084-f7cc51ea0c0d/bin/uautomizer/witness.graphml [2019-10-22 09:01:37,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:37,737 INFO L168 Benchmark]: Toolchain (without parser) took 1006.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:37,737 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:37,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:37,738 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.25 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. [2019-10-22 09:01:37,739 INFO L168 Benchmark]: Boogie Preprocessor took 13.38 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. [2019-10-22 09:01:37,739 INFO L168 Benchmark]: RCFGBuilder took 215.99 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:37,740 INFO L168 Benchmark]: BuchiAutomizer took 477.31 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: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:37,740 INFO L168 Benchmark]: Witness Printer took 41.42 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. [2019-10-22 09:01:37,742 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.25 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 13.38 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 215.99 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 477.31 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: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Witness Printer took 41.42 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 0.3s. 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: 23]: 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 {oldx=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e26bcb8=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30aad0ec=0, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int oldx; [L16] int x; [L17] int y; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L21] COND FALSE !(!(x>=-2147483647)) [L22] COND FALSE !(!(y>=-2147483647)) Loop: [L23] COND TRUE \read(true) [L24] oldx = x [L25] x = -y [L26] y = oldx End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...