./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_3.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/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 d98e71a1078b2449fb14cda1ae702f0946372561 ............................................................................................................................................................................................................................................................................................................................. 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 08:55:40,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:40,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:40,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:40,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:40,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:40,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:40,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:40,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:40,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:40,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:40,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:40,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:40,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:40,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:40,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:40,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:40,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:40,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:40,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:40,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:40,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:40,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:40,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:40,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:40,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:40,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:40,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:40,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:40,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:40,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:40,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:40,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:40,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:40,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:40,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:40,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:40,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:40,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:40,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:40,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:40,448 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:55:40,461 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:40,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:40,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:40,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:40,462 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:40,463 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:55:40,463 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:55:40,463 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:55:40,463 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:55:40,463 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:55:40,464 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:55:40,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:40,464 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:40,464 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:40,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:40,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:40,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:40,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:55:40,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:55:40,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:55:40,465 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:40,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:40,465 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:55:40,465 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:40,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:55:40,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:40,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:40,466 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:55:40,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:40,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:40,467 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:55:40,468 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:55:40,468 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_c32c26fe-3914-4d1c-9d64-2fddfd119598/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 -> d98e71a1078b2449fb14cda1ae702f0946372561 [2019-10-22 08:55:40,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:40,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:40,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:40,504 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:40,505 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:40,505 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_3.c [2019-10-22 08:55:40,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/data/ec9cee6eb/3767ae8dec824ddeb5d755b4808c108f/FLAGa05f86e96 [2019-10-22 08:55:40,896 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:40,897 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/sv-benchmarks/c/loops/while_infinite_loop_3.c [2019-10-22 08:55:40,902 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/data/ec9cee6eb/3767ae8dec824ddeb5d755b4808c108f/FLAGa05f86e96 [2019-10-22 08:55:40,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/data/ec9cee6eb/3767ae8dec824ddeb5d755b4808c108f [2019-10-22 08:55:40,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:40,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:40,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:40,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:40,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:40,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:40" (1/1) ... [2019-10-22 08:55:40,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af3be52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:40, skipping insertion in model container [2019-10-22 08:55:40,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:40" (1/1) ... [2019-10-22 08:55:40,933 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:40,946 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:41,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:41,061 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:41,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:41,144 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:41,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41 WrapperNode [2019-10-22 08:55:41,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:41,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:41,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:41,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:41,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:41,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:41,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:41,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:41,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... [2019-10-22 08:55:41,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:41,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:41,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:41,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:41,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/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 08:55:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:41,388 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:41,388 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 08:55:41,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:41 BoogieIcfgContainer [2019-10-22 08:55:41,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:41,390 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:55:41,390 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:55:41,394 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:55:41,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:41,395 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:55:40" (1/3) ... [2019-10-22 08:55:41,396 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ccc2928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:41, skipping insertion in model container [2019-10-22 08:55:41,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:41,396 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:41" (2/3) ... [2019-10-22 08:55:41,397 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ccc2928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:41, skipping insertion in model container [2019-10-22 08:55:41,397 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:41,397 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:41" (3/3) ... [2019-10-22 08:55:41,399 INFO L371 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_3.c [2019-10-22 08:55:41,490 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:55:41,490 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:55:41,490 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:55:41,491 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:41,491 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:41,491 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:55:41,491 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:41,491 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:55:41,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-10-22 08:55:41,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-10-22 08:55:41,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:41,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:41,539 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:55:41,540 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 08:55:41,540 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:55:41,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-10-22 08:55:41,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-10-22 08:55:41,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:41,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:41,541 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:55:41,542 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 08:55:41,549 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue ~x~0 := 0; 4#L-1true havoc main_#res; 12#L4-2true [2019-10-22 08:55:41,549 INFO L793 eck$LassoCheckResult]: Loop: 12#L4-2true assume !false; 14#L14loopEntrytrue assume false; 10#L14-2true __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 16#L4true assume !(0 == __VERIFIER_assert_~cond); 12#L4-2true [2019-10-22 08:55:41,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:41,555 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-10-22 08:55:41,563 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:41,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920644032] [2019-10-22 08:55:41,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:41,637 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:41,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:41,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1269327, now seen corresponding path program 1 times [2019-10-22 08:55:41,639 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:41,639 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588553086] [2019-10-22 08:55:41,639 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,640 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:41,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:41,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588553086] [2019-10-22 08:55:41,667 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:41,668 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:55:41,668 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770567525] [2019-10-22 08:55:41,674 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:55:41,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:41,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:55:41,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:55:41,693 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-10-22 08:55:41,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:41,701 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-10-22 08:55:41,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:55:41,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2019-10-22 08:55:41,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:55:41,707 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 6 transitions. [2019-10-22 08:55:41,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-10-22 08:55:41,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-10-22 08:55:41,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2019-10-22 08:55:41,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:41,710 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-10-22 08:55:41,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2019-10-22 08:55:41,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-10-22 08:55:41,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-10-22 08:55:41,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-10-22 08:55:41,738 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-10-22 08:55:41,738 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-10-22 08:55:41,738 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:55:41,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2019-10-22 08:55:41,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:55:41,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:41,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:41,740 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:55:41,741 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 08:55:41,741 INFO L791 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY ~x~0 := 0; 29#L-1 havoc main_#res; 30#L4-2 [2019-10-22 08:55:41,741 INFO L793 eck$LassoCheckResult]: Loop: 30#L4-2 assume !false; 34#L14loopEntry assume !false;~x~0 := 0; 32#L14-2 __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 33#L4 assume !(0 == __VERIFIER_assert_~cond); 30#L4-2 [2019-10-22 08:55:41,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:41,741 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2019-10-22 08:55:41,741 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:41,742 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607979851] [2019-10-22 08:55:41,742 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,742 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:41,746 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:41,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:41,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1271249, now seen corresponding path program 1 times [2019-10-22 08:55:41,747 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:41,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246618656] [2019-10-22 08:55:41,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,748 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:41,762 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:41,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:41,762 INFO L82 PathProgramCache]: Analyzing trace with hash 889698451, now seen corresponding path program 1 times [2019-10-22 08:55:41,762 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:41,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943792976] [2019-10-22 08:55:41,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:41,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:41,772 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:41,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:55:41 BoogieIcfgContainer [2019-10-22 08:55:41,874 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:55:41,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:41,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:41,875 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:41,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:41" (3/4) ... [2019-10-22 08:55:41,879 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:55:41,922 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c32c26fe-3914-4d1c-9d64-2fddfd119598/bin/uautomizer/witness.graphml [2019-10-22 08:55:41,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:41,926 INFO L168 Benchmark]: Toolchain (without parser) took 1009.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:41,927 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 08:55:41,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:41,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.03 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 08:55:41,931 INFO L168 Benchmark]: Boogie Preprocessor took 13.65 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. [2019-10-22 08:55:41,932 INFO L168 Benchmark]: RCFGBuilder took 203.47 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 08:55:41,933 INFO L168 Benchmark]: BuchiAutomizer took 484.39 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:41,934 INFO L168 Benchmark]: Witness Printer took 49.14 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 08:55:41,937 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 227.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.03 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 13.65 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. * RCFGBuilder took 203.47 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 484.39 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 49.14 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 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 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 24]: 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: [L10] int x=0; Loop: [L24] COND TRUE 1 [L14] COND TRUE 1 [L15] x=0 [L4] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...