./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Rotation180-1.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_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/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 2c72d82c532a02e29872b33df90bf95e27cdfe45 ................................................................................................................................................................................................................................................................................. 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 03:21:15,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:15,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:15,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:15,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:15,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:15,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:15,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:15,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:15,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:15,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:15,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:15,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:15,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:15,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:15,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:15,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:15,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:15,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:15,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:15,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:15,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:15,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:15,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:15,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:15,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:15,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:15,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:15,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:15,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:15,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:15,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:15,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:15,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:15,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:15,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:15,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:15,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:15,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:15,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:15,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:15,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:21:15,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:15,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:15,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:15,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:15,241 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:15,241 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:21:15,241 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:21:15,242 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:21:15,242 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:21:15,242 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:21:15,243 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:21:15,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:15,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:21:15,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:15,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:15,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:21:15,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:21:15,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:21:15,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:15,245 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:21:15,246 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:15,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:21:15,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:15,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:15,247 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:21:15,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:15,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:15,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:15,248 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:21:15,249 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:21:15,249 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_c9ad9ad8-d6b9-4da6-861e-86707828cc96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c72d82c532a02e29872b33df90bf95e27cdfe45 [2020-11-28 03:21:15,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:15,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:15,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:15,554 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:15,555 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:15,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Rotation180-1.c [2020-11-28 03:21:15,630 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/data/7d8da892d/62f6fce45d4849f4b234674458e65ec9/FLAG51b89dcb4 [2020-11-28 03:21:16,134 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:16,134 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/sv-benchmarks/c/termination-crafted/Rotation180-1.c [2020-11-28 03:21:16,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/data/7d8da892d/62f6fce45d4849f4b234674458e65ec9/FLAG51b89dcb4 [2020-11-28 03:21:16,499 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/data/7d8da892d/62f6fce45d4849f4b234674458e65ec9 [2020-11-28 03:21:16,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:16,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:16,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:16,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:16,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:16,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214cf9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16, skipping insertion in model container [2020-11-28 03:21:16,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:16,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:16,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:16,696 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:16,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:16,741 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:16,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16 WrapperNode [2020-11-28 03:21:16,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:16,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:16,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:16,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:16,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:16,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:16,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:16,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:16,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... [2020-11-28 03:21:16,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:16,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:16,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:16,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:16,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/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 03:21:16,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:16,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:17,006 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:17,006 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:21:17,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:17 BoogieIcfgContainer [2020-11-28 03:21:17,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:17,009 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:21:17,009 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:21:17,012 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:21:17,013 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:17,013 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:21:16" (1/3) ... [2020-11-28 03:21:17,014 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fcc67f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:17, skipping insertion in model container [2020-11-28 03:21:17,014 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:17,014 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:16" (2/3) ... [2020-11-28 03:21:17,015 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fcc67f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:17, skipping insertion in model container [2020-11-28 03:21:17,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:17,015 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:17" (3/3) ... [2020-11-28 03:21:17,017 INFO L373 chiAutomizerObserver]: Analyzing ICFG Rotation180-1.c [2020-11-28 03:21:17,066 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:21:17,066 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:21:17,066 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:21:17,066 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:17,067 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:17,067 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:21:17,067 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:17,067 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:21:17,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-28 03:21:17,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:21:17,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:17,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:17,100 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 03:21:17,100 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:21:17,100 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:21:17,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-28 03:21:17,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:21:17,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:17,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:17,102 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 03:21:17,102 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:21:17,107 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~oldx~0, main_~x~0, main_~y~0;havoc main_~oldx~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L21true assume !!(main_~x~0 >= -2147483647); 6#L22true assume !!(main_~y~0 >= -2147483647); 4#L23-2true [2020-11-28 03:21:17,107 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(0 != ~unnamed0~0~true);main_~oldx~0 := main_~x~0;main_~x~0 := -main_~y~0;main_~y~0 := main_~oldx~0; 4#L23-2true [2020-11-28 03:21:17,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:17,113 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2020-11-28 03:21:17,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:17,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358134352] [2020-11-28 03:21:17,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:17,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:17,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:17,217 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:17,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:17,219 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2020-11-28 03:21:17,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:17,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331643233] [2020-11-28 03:21:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:17,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:17,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:17,252 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:17,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:17,256 INFO L82 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2020-11-28 03:21:17,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:17,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232313352] [2020-11-28 03:21:17,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:17,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:17,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:17,283 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:17,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:21:17 BoogieIcfgContainer [2020-11-28 03:21:17,467 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:21:17,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:17,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:17,468 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:17,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:17" (3/4) ... [2020-11-28 03:21:17,471 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-28 03:21:17,510 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c9ad9ad8-d6b9-4da6-861e-86707828cc96/bin/uautomizer/witness.graphml [2020-11-28 03:21:17,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:17,512 INFO L168 Benchmark]: Toolchain (without parser) took 1004.54 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 66.6 MB in the beginning and 72.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:17,513 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:17,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.78 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 66.6 MB in the beginning and 107.1 MB in the end (delta: -40.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:17,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.03 ms. Allocated memory is still 127.9 MB. Free memory was 107.1 MB in the beginning and 105.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:17,516 INFO L168 Benchmark]: Boogie Preprocessor took 18.07 ms. Allocated memory is still 127.9 MB. Free memory was 105.8 MB in the beginning and 104.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:17,517 INFO L168 Benchmark]: RCFGBuilder took 220.74 ms. Allocated memory is still 127.9 MB. Free memory was 104.3 MB in the beginning and 95.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:17,517 INFO L168 Benchmark]: BuchiAutomizer took 458.09 ms. Allocated memory is still 127.9 MB. Free memory was 95.9 MB in the beginning and 74.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:17,518 INFO L168 Benchmark]: Witness Printer took 42.86 ms. Allocated memory is still 127.9 MB. Free memory was 74.9 MB in the beginning and 72.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:17,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.78 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 66.6 MB in the beginning and 107.1 MB in the end (delta: -40.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.03 ms. Allocated memory is still 127.9 MB. Free memory was 107.1 MB in the beginning and 105.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.07 ms. Allocated memory is still 127.9 MB. Free memory was 105.8 MB in the beginning and 104.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 220.74 ms. Allocated memory is still 127.9 MB. Free memory was 104.3 MB in the beginning and 95.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 458.09 ms. Allocated memory is still 127.9 MB. Free memory was 95.9 MB in the beginning and 74.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 42.86 ms. Allocated memory is still 127.9 MB. Free memory was 74.9 MB in the beginning and 72.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. 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 0.3s. 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: 23]: 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 {oldx=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@679c7e25=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2237be05=0, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int oldx; [L16] int x; [L17] int y; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L21] COND FALSE !(!(x>=-2147483647)) [L22] COND FALSE !(!(y>=-2147483647)) Loop: [L23] COND TRUE \read(true) [L24] oldx = x [L25] x = -y [L26] y = oldx End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...