./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/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 0.1.25-f470102 [2019-12-07 14:36:28,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:36:28,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:36:28,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:36:28,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:36:28,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:36:28,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:36:28,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:36:28,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:36:28,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:36:28,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:36:28,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:36:28,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:36:28,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:36:28,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:36:28,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:36:28,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:36:28,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:36:28,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:36:28,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:36:28,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:36:28,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:36:28,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:36:28,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:36:28,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:36:28,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:36:28,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:36:28,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:36:28,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:36:28,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:36:28,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:36:28,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:36:28,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:36:28,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:36:28,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:36:28,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:36:28,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:36:28,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:36:28,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:36:28,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:36:28,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:36:28,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:36:28,872 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:36:28,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:36:28,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:36:28,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:36:28,873 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:36:28,873 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:36:28,874 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:36:28,874 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:36:28,874 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:36:28,874 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:36:28,874 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:36:28,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:36:28,874 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:36:28,875 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:36:28,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:36:28,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:36:28,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:36:28,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:36:28,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:36:28,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:36:28,876 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:36:28,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:36:28,876 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:36:28,876 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:36:28,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:36:28,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:36:28,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:36:28,876 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:36:28,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:36:28,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:36:28,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:36:28,877 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:36:28,877 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:36:28,878 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_49623970-a07f-40bb-a007-09679bc8fbc7/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 [2019-12-07 14:36:28,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:36:28,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:36:28,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:36:28,989 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:36:28,989 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:36:28,989 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_3.c [2019-12-07 14:36:29,033 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/data/e0df6700a/533994ed948741dbb458db0779a7ffea/FLAG8c50b0a79 [2019-12-07 14:36:29,397 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:36:29,398 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/sv-benchmarks/c/loops/while_infinite_loop_3.c [2019-12-07 14:36:29,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/data/e0df6700a/533994ed948741dbb458db0779a7ffea/FLAG8c50b0a79 [2019-12-07 14:36:29,819 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/data/e0df6700a/533994ed948741dbb458db0779a7ffea [2019-12-07 14:36:29,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:36:29,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:36:29,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:36:29,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:36:29,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:36:29,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:29,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1d1bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29, skipping insertion in model container [2019-12-07 14:36:29,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:29,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:36:29,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:36:29,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:36:29,946 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:36:29,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:36:29,994 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:36:29,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29 WrapperNode [2019-12-07 14:36:29,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:36:29,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:36:29,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:36:29,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:36:30,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:36:30,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:36:30,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:36:30,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:36:30,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... [2019-12-07 14:36:30,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:36:30,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:36:30,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:36:30,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:36:30,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/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 14:36:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:36:30,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:36:30,156 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:36:30,156 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 14:36:30,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:36:30 BoogieIcfgContainer [2019-12-07 14:36:30,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:36:30,157 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:36:30,157 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:36:30,160 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:36:30,160 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:36:30,160 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:36:29" (1/3) ... [2019-12-07 14:36:30,161 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b2c49ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:36:30, skipping insertion in model container [2019-12-07 14:36:30,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:36:30,161 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:36:29" (2/3) ... [2019-12-07 14:36:30,161 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b2c49ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:36:30, skipping insertion in model container [2019-12-07 14:36:30,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:36:30,161 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:36:30" (3/3) ... [2019-12-07 14:36:30,163 INFO L371 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_3.c [2019-12-07 14:36:30,193 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:36:30,193 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:36:30,193 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:36:30,194 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:36:30,194 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:36:30,194 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:36:30,194 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:36:30,194 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:36:30,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 14:36:30,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 14:36:30,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:36:30,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:36:30,220 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 14:36:30,220 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 14:36:30,220 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:36:30,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 14:36:30,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 14:36:30,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:36:30,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:36:30,222 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 14:36:30,222 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 14:36:30,226 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue ~x~0 := 0; 4#L-1true havoc main_#res; 12#L4-2true [2019-12-07 14:36:30,227 INFO L796 eck$LassoCheckResult]: Loop: 12#L4-2true assume !false; 14#L14loopEntrytrue assume false; 10#L14-2true __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 16#L4true assume !(0 == __VERIFIER_assert_~cond); 12#L4-2true [2019-12-07 14:36:30,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:36:30,231 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 14:36:30,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:36:30,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271632786] [2019-12-07 14:36:30,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:36:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:36:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:36:30,302 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:36:30,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:36:30,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1269327, now seen corresponding path program 1 times [2019-12-07 14:36:30,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:36:30,303 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870145719] [2019-12-07 14:36:30,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:36:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:36:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:36:30,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870145719] [2019-12-07 14:36:30,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:36:30,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:36:30,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306879011] [2019-12-07 14:36:30,327 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 14:36:30,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:36:30,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:36:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:36:30,342 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-12-07 14:36:30,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:36:30,345 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-12-07 14:36:30,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:36:30,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2019-12-07 14:36:30,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:36:30,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 6 transitions. [2019-12-07 14:36:30,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 14:36:30,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-12-07 14:36:30,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2019-12-07 14:36:30,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:36:30,351 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-12-07 14:36:30,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2019-12-07 14:36:30,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-12-07 14:36:30,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 14:36:30,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-12-07 14:36:30,368 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-12-07 14:36:30,368 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-12-07 14:36:30,368 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:36:30,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2019-12-07 14:36:30,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 14:36:30,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:36:30,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:36:30,369 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 14:36:30,369 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 14:36:30,369 INFO L794 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY ~x~0 := 0; 29#L-1 havoc main_#res; 30#L4-2 [2019-12-07 14:36:30,370 INFO L796 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 [2019-12-07 14:36:30,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:36:30,370 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2019-12-07 14:36:30,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:36:30,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811517883] [2019-12-07 14:36:30,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:36:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:36:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:36:30,374 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:36:30,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:36:30,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1271249, now seen corresponding path program 1 times [2019-12-07 14:36:30,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:36:30,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483901876] [2019-12-07 14:36:30,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:36:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:36:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:36:30,385 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:36:30,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:36:30,386 INFO L82 PathProgramCache]: Analyzing trace with hash 889698451, now seen corresponding path program 1 times [2019-12-07 14:36:30,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:36:30,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045694389] [2019-12-07 14:36:30,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:36:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:36:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:36:30,393 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:36:30,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:36:30 BoogieIcfgContainer [2019-12-07 14:36:30,441 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:36:30,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:36:30,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:36:30,441 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:36:30,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:36:30" (3/4) ... [2019-12-07 14:36:30,443 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 14:36:30,467 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_49623970-a07f-40bb-a007-09679bc8fbc7/bin/uautomizer/witness.graphml [2019-12-07 14:36:30,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:36:30,468 INFO L168 Benchmark]: Toolchain (without parser) took 644.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -129.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:36:30,469 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:36:30,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:36:30,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.36 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. [2019-12-07 14:36:30,470 INFO L168 Benchmark]: Boogie Preprocessor took 11.40 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. [2019-12-07 14:36:30,470 INFO L168 Benchmark]: RCFGBuilder took 130.67 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:36:30,470 INFO L168 Benchmark]: BuchiAutomizer took 283.41 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:36:30,471 INFO L168 Benchmark]: Witness Printer took 25.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:36:30,472 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.36 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 11.40 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 130.67 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 283.41 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 25.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 0.2s and 2 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 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...