./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/ComplInterv2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/ComplInterv2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a392558b157800b1e3eb593ecf3b38e4b620b365 .......................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-28 03:21:36,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:36,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:36,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:36,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:36,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:36,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:36,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:36,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:36,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:36,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:36,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:36,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:36,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:36,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:36,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:36,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:36,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:36,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:36,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:36,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:36,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:36,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:36,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:36,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:36,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:36,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:36,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:36,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:36,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:36,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:36,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:36,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:36,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:36,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:36,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:36,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:36,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:36,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:36,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:36,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:36,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:21:36,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:36,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:36,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:36,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:36,957 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:36,957 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:21:36,958 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:21:36,958 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:21:36,958 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:21:36,958 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:21:36,958 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:21:36,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:36,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:21:36,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:36,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:36,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:21:36,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:21:36,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:21:36,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:36,960 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:21:36,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:36,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:21:36,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:36,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:36,961 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:21:36,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:36,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:36,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:36,962 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:21:36,963 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:21:36,964 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a392558b157800b1e3eb593ecf3b38e4b620b365 [2020-11-28 03:21:37,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:37,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:37,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:37,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:37,286 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:37,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/ComplInterv2.c [2020-11-28 03:21:37,383 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/data/ae467bf2f/da0f527084a9473bb1cd37f7c212060c/FLAG8be0c6c68 [2020-11-28 03:21:37,905 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:37,905 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/sv-benchmarks/c/termination-restricted-15/ComplInterv2.c [2020-11-28 03:21:37,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/data/ae467bf2f/da0f527084a9473bb1cd37f7c212060c/FLAG8be0c6c68 [2020-11-28 03:21:38,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/data/ae467bf2f/da0f527084a9473bb1cd37f7c212060c [2020-11-28 03:21:38,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:38,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:38,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:38,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:38,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:38,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a8e639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38, skipping insertion in model container [2020-11-28 03:21:38,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:38,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:38,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:38,522 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:38,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:38,572 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:38,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38 WrapperNode [2020-11-28 03:21:38,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:38,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:38,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:38,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:38,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:38,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:38,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:38,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:38,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:38,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:38,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:38,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:38,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/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 [2020-11-28 03:21:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:38,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:38,858 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:38,859 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:21:38,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:38 BoogieIcfgContainer [2020-11-28 03:21:38,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:38,861 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:21:38,865 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:21:38,871 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:21:38,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:38,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:21:38" (1/3) ... [2020-11-28 03:21:38,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6eb67118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:38, skipping insertion in model container [2020-11-28 03:21:38,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:38,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (2/3) ... [2020-11-28 03:21:38,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6eb67118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:38, skipping insertion in model container [2020-11-28 03:21:38,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:38,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:38" (3/3) ... [2020-11-28 03:21:38,877 INFO L373 chiAutomizerObserver]: Analyzing ICFG ComplInterv2.c [2020-11-28 03:21:38,927 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:21:38,927 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:21:38,928 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:21:38,928 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:38,928 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:38,928 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:21:38,928 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:38,928 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:21:38,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-28 03:21:38,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:21:38,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:38,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:38,964 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-28 03:21:38,965 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:21:38,965 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:21:38,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-28 03:21:38,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:21:38,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:38,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:38,967 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-28 03:21:38,967 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:21:38,974 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 9#L10-1true [2020-11-28 03:21:38,974 INFO L796 eck$LassoCheckResult]: Loop: 9#L10-1true assume !!(0 != main_~i~0); 3#L10true assume !(main_~i~0 > -5 && main_~i~0 < 5); 9#L10-1true [2020-11-28 03:21:38,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:38,980 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-28 03:21:38,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:38,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701649070] [2020-11-28 03:21:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,056 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,079 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1298, now seen corresponding path program 1 times [2020-11-28 03:21:39,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791623814] [2020-11-28 03:21:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,096 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:39,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,099 INFO L82 PathProgramCache]: Analyzing trace with hash 31089, now seen corresponding path program 1 times [2020-11-28 03:21:39,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868072587] [2020-11-28 03:21:39,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,113 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:39,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:21:39 BoogieIcfgContainer [2020-11-28 03:21:39,240 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:21:39,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:39,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:39,250 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:39,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:38" (3/4) ... [2020-11-28 03:21:39,255 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-28 03:21:39,325 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_21ad5f43-399a-47a1-87c7-0d3559412c49/bin/uautomizer/witness.graphml [2020-11-28 03:21:39,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:39,328 INFO L168 Benchmark]: Toolchain (without parser) took 1025.69 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 58.7 MB in the beginning and 91.5 MB in the end (delta: -32.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,329 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.98 ms. Allocated memory is still 88.1 MB. Free memory was 58.5 MB in the beginning and 67.5 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:39,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.53 ms. Allocated memory is still 88.1 MB. Free memory was 67.5 MB in the beginning and 66.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,341 INFO L168 Benchmark]: Boogie Preprocessor took 20.08 ms. Allocated memory is still 88.1 MB. Free memory was 66.2 MB in the beginning and 65.5 MB in the end (delta: 679.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,342 INFO L168 Benchmark]: RCFGBuilder took 234.42 ms. Allocated memory is still 88.1 MB. Free memory was 65.2 MB in the beginning and 57.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:39,343 INFO L168 Benchmark]: BuchiAutomizer took 378.31 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 40.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:39,345 INFO L168 Benchmark]: Witness Printer took 75.43 ms. Allocated memory is still 113.2 MB. Free memory was 92.6 MB in the beginning and 91.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:39,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.98 ms. Allocated memory is still 88.1 MB. Free memory was 58.5 MB in the beginning and 67.5 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.53 ms. Allocated memory is still 88.1 MB. Free memory was 67.5 MB in the beginning and 66.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.08 ms. Allocated memory is still 88.1 MB. Free memory was 66.2 MB in the beginning and 65.5 MB in the end (delta: 679.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 234.42 ms. Allocated memory is still 88.1 MB. Free memory was 65.2 MB in the beginning and 57.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 378.31 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 40.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 75.43 ms. Allocated memory is still 113.2 MB. Free memory was 92.6 MB in the beginning and 91.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b750e86=0, \result=0, i=5} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i != 0 [L10] COND FALSE !(i > -5 && i < 5) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...