./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c28500fb39e284eb130c0904f2ebec477741685a ................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:26:34,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:26:34,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:26:34,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:26:34,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:26:34,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:26:34,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:26:34,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:26:34,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:26:34,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:26:34,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:26:34,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:26:34,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:26:34,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:26:34,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:26:34,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:26:34,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:26:34,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:26:34,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:26:34,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:26:34,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:26:34,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:26:34,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:26:34,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:26:34,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:26:34,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:26:34,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:26:34,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:26:34,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:26:34,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:26:34,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:26:34,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:26:34,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:26:34,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:26:34,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:26:34,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:26:34,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:26:34,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:26:34,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:26:34,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:26:34,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:26:34,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 15:26:34,946 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:26:34,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:26:34,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:26:34,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:26:34,947 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:26:34,947 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 15:26:34,947 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 15:26:34,948 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 15:26:34,948 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 15:26:34,948 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 15:26:34,948 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 15:26:34,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:26:34,948 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:26:34,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:26:34,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:26:34,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:26:34,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:26:34,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 15:26:34,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 15:26:34,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 15:26:34,949 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:26:34,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:26:34,949 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 15:26:34,950 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:26:34,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 15:26:34,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:26:34,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:26:34,950 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 15:26:34,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:26:34,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:26:34,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:26:34,951 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 15:26:34,951 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 15:26:34,951 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_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c28500fb39e284eb130c0904f2ebec477741685a [2019-12-07 15:26:35,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:26:35,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:26:35,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:26:35,068 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:26:35,069 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:26:35,069 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/../../sv-benchmarks/c/loops/while_infinite_loop_1.c [2019-12-07 15:26:35,117 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/data/32341ae78/b838cea3e80544c2ac66c8aa26341cfd/FLAG63baaab91 [2019-12-07 15:26:35,560 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:26:35,561 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/sv-benchmarks/c/loops/while_infinite_loop_1.c [2019-12-07 15:26:35,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/data/32341ae78/b838cea3e80544c2ac66c8aa26341cfd/FLAG63baaab91 [2019-12-07 15:26:35,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/data/32341ae78/b838cea3e80544c2ac66c8aa26341cfd [2019-12-07 15:26:35,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:26:35,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:26:35,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:26:35,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:26:35,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:26:35,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a2a441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35, skipping insertion in model container [2019-12-07 15:26:35,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:26:35,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:26:35,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:26:35,709 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:26:35,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:26:35,762 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:26:35,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35 WrapperNode [2019-12-07 15:26:35,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:26:35,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:26:35,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:26:35,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:26:35,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:26:35,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:26:35,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:26:35,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:26:35,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... [2019-12-07 15:26:35,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:26:35,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:26:35,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:26:35,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:26:35,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/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 15:26:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:26:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:26:35,908 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:26:35,908 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 15:26:35,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:26:35 BoogieIcfgContainer [2019-12-07 15:26:35,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:26:35,909 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 15:26:35,909 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 15:26:35,911 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 15:26:35,912 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:26:35,912 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 03:26:35" (1/3) ... [2019-12-07 15:26:35,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ed271a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:26:35, skipping insertion in model container [2019-12-07 15:26:35,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:26:35,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:26:35" (2/3) ... [2019-12-07 15:26:35,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ed271a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:26:35, skipping insertion in model container [2019-12-07 15:26:35,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:26:35,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:26:35" (3/3) ... [2019-12-07 15:26:35,914 INFO L371 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_1.c [2019-12-07 15:26:35,943 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 15:26:35,943 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 15:26:35,943 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 15:26:35,943 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:26:35,943 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:26:35,944 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 15:26:35,944 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:26:35,944 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 15:26:35,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-12-07 15:26:35,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 15:26:35,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:26:35,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:26:35,969 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 15:26:35,969 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:26:35,969 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 15:26:35,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-12-07 15:26:35,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 15:26:35,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:26:35,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:26:35,971 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 15:26:35,971 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:26:35,975 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~x~0;main_~x~0 := 0; 9#L4-2true [2019-12-07 15:26:35,976 INFO L796 eck$LassoCheckResult]: Loop: 9#L4-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 11#L4true assume !(0 == __VERIFIER_assert_~cond); 9#L4-2true [2019-12-07 15:26:35,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:26:35,979 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 15:26:35,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:26:35,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26747209] [2019-12-07 15:26:35,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:26:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:26:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:26:36,046 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:26:36,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:26:36,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-12-07 15:26:36,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:26:36,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662823724] [2019-12-07 15:26:36,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:26:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:26:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:26:36,059 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:26:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:26:36,061 INFO L82 PathProgramCache]: Analyzing trace with hash 31079, now seen corresponding path program 1 times [2019-12-07 15:26:36,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:26:36,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846827576] [2019-12-07 15:26:36,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:26:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:26:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:26:36,068 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:26:36,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 03:26:36 BoogieIcfgContainer [2019-12-07 15:26:36,108 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 15:26:36,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:26:36,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:26:36,109 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:26:36,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:26:35" (3/4) ... [2019-12-07 15:26:36,111 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 15:26:36,135 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8945c18c-cf01-47f2-8ac2-ba4071c35f78/bin/uautomizer/witness.graphml [2019-12-07 15:26:36,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:26:36,137 INFO L168 Benchmark]: Toolchain (without parser) took 560.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -103.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:26:36,137 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:26:36,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:26:36,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:26:36,139 INFO L168 Benchmark]: Boogie Preprocessor took 11.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:26:36,139 INFO L168 Benchmark]: RCFGBuilder took 115.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:26:36,140 INFO L168 Benchmark]: BuchiAutomizer took 199.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:26:36,140 INFO L168 Benchmark]: Witness Printer took 26.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:26:36,143 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 185.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 115.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 199.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Witness Printer took 26.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {cond=1, \result=0, \old(cond)=1, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 3]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] int x=0; Loop: [L13] COND TRUE 1 [L4] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...