./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/WhileFalse.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_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/WhileFalse.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/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 9f15d52494f2bb20316f0c01d603c20e3274fba8 ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:21:05,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:05,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:05,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:05,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:05,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:05,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:05,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:05,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:05,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:05,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:05,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:05,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:05,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:05,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:05,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:05,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:05,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:05,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:05,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:05,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:05,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:05,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:05,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:05,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:05,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:05,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:05,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:05,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:05,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:05,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:05,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:05,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:05,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:05,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:05,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:05,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:05,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:05,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:05,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:05,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:05,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:21:05,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:05,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:05,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:05,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:05,732 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:05,732 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:21:05,733 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:21:05,733 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:21:05,733 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:21:05,734 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:21:05,734 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:21:05,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:05,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:21:05,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:05,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:05,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:21:05,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:21:05,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:21:05,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:05,736 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:21:05,736 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:05,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:21:05,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:05,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:05,737 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:21:05,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:05,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:05,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:05,738 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:21:05,739 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:21:05,739 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_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f15d52494f2bb20316f0c01d603c20e3274fba8 [2020-11-28 03:21:06,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:06,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:06,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:06,032 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:06,033 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:06,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/WhileFalse.c [2020-11-28 03:21:06,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/data/3f7802457/f8663efd3d4644be987b893422697cb3/FLAGb27b425fb [2020-11-28 03:21:06,538 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:06,539 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/sv-benchmarks/c/termination-crafted/WhileFalse.c [2020-11-28 03:21:06,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/data/3f7802457/f8663efd3d4644be987b893422697cb3/FLAGb27b425fb [2020-11-28 03:21:06,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/bin/uautomizer/data/3f7802457/f8663efd3d4644be987b893422697cb3 [2020-11-28 03:21:06,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:06,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:06,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:06,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:06,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:06,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:06" (1/1) ... [2020-11-28 03:21:06,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9c7f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:06, skipping insertion in model container [2020-11-28 03:21:06,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:06" (1/1) ... [2020-11-28 03:21:06,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:06,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:07,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:07,141 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:07,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:07,179 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:07,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07 WrapperNode [2020-11-28 03:21:07,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:07,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:07,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:07,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:07,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:07,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:07,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:07,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:07,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... [2020-11-28 03:21:07,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:07,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:07,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:07,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:07,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf0e54db-3c4c-40bf-9f35-67d7a0b4c34a/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 03:21:07,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:07,415 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:07,415 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:21:07,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:07 BoogieIcfgContainer [2020-11-28 03:21:07,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:07,418 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:21:07,418 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:21:07,422 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:21:07,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:07,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:21:06" (1/3) ... [2020-11-28 03:21:07,424 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a602f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:07, skipping insertion in model container [2020-11-28 03:21:07,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:07,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:07" (2/3) ... [2020-11-28 03:21:07,425 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a602f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:07, skipping insertion in model container [2020-11-28 03:21:07,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:07,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:07" (3/3) ... [2020-11-28 03:21:07,427 INFO L373 chiAutomizerObserver]: Analyzing ICFG WhileFalse.c [2020-11-28 03:21:07,498 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:21:07,498 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:21:07,498 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:21:07,498 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:07,499 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:07,499 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:21:07,499 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:07,499 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:21:07,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-28 03:21:07,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:21:07,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:07,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:07,536 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-28 03:21:07,536 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:21:07,537 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:21:07,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-28 03:21:07,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:21:07,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:07,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:07,539 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-28 03:21:07,539 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:21:07,546 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res; 6#L14-2true [2020-11-28 03:21:07,546 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(0 != ~unnamed0~0~false); 6#L14-2true [2020-11-28 03:21:07,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:07,553 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-28 03:21:07,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:07,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681451641] [2020-11-28 03:21:07,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:07,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:07,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:07,646 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:07,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:07,648 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-11-28 03:21:07,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:07,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526614460] [2020-11-28 03:21:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:07,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:07,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526614460] [2020-11-28 03:21:07,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:07,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-11-28 03:21:07,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126346153] [2020-11-28 03:21:07,674 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:21:07,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:07,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:21:07,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:21:07,691 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 2 states. [2020-11-28 03:21:07,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:07,697 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-11-28 03:21:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:21:07,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2020-11-28 03:21:07,700 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:21:07,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2020-11-28 03:21:07,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:21:07,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:21:07,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:21:07,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:21:07,705 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:07,705 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:07,705 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:07,705 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:21:07,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:07,706 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:21:07,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:21:07,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:21:07 BoogieIcfgContainer [2020-11-28 03:21:07,711 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:21:07,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:07,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:07,712 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:07,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:07" (3/4) ... [2020-11-28 03:21:07,716 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:21:07,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:07,718 INFO L168 Benchmark]: Toolchain (without parser) took 765.67 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 46.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,719 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:07,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.92 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 70.2 MB in the end (delta: -12.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.10 ms. Allocated memory is still 90.2 MB. Free memory was 69.8 MB in the beginning and 68.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:07,722 INFO L168 Benchmark]: Boogie Preprocessor took 17.16 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 67.8 MB in the end (delta: 842.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:07,723 INFO L168 Benchmark]: RCFGBuilder took 188.50 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 61.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,723 INFO L168 Benchmark]: BuchiAutomizer took 293.46 ms. Allocated memory is still 90.2 MB. Free memory was 61.1 MB in the beginning and 46.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:07,724 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 90.2 MB. Free memory is still 46.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:07,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 226.92 ms. Allocated memory is still 90.2 MB. Free memory was 57.6 MB in the beginning and 70.2 MB in the end (delta: -12.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.10 ms. Allocated memory is still 90.2 MB. Free memory was 69.8 MB in the beginning and 68.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.16 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 67.8 MB in the end (delta: 842.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 188.50 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 61.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 293.46 ms. Allocated memory is still 90.2 MB. Free memory was 61.1 MB in the beginning and 46.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.53 ms. Allocated memory is still 90.2 MB. Free memory is still 46.0 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 2 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 No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 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: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...