./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa73ad1a0f138950efa961688e68ed3fdb6cd647 ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:04:18,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:04:18,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:04:18,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:04:18,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:04:18,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:04:18,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:04:18,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:04:18,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:04:18,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:04:18,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:04:18,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:04:18,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:04:18,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:04:18,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:04:18,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:04:18,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:04:18,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:04:18,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:04:18,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:04:18,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:04:18,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:04:18,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:04:18,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:04:18,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:04:18,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:04:18,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:04:18,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:04:18,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:04:18,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:04:18,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:04:18,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:04:18,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:04:18,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:04:18,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:04:18,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:04:18,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:04:18,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:04:18,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:04:18,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:04:18,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:04:18,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 12:04:18,337 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:04:18,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:04:18,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:04:18,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:04:18,338 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:04:18,338 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:04:18,338 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:04:18,338 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:04:18,338 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:04:18,338 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:04:18,338 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:04:18,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:04:18,338 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:04:18,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:04:18,340 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:04:18,340 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:04:18,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:04:18,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:04:18,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:04:18,340 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:04:18,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:04:18,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:04:18,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:04:18,341 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:04:18,341 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:04:18,341 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa73ad1a0f138950efa961688e68ed3fdb6cd647 [2019-12-07 12:04:18,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:04:18,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:04:18,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:04:18,450 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:04:18,450 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:04:18,451 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/../../sv-benchmarks/c/loops/for_infinite_loop_1.c [2019-12-07 12:04:18,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/data/2f2d0f0e8/b83a679ceead40f08e9c8b5da59181c2/FLAGc8fcbfc69 [2019-12-07 12:04:18,905 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:04:18,906 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/sv-benchmarks/c/loops/for_infinite_loop_1.c [2019-12-07 12:04:18,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/data/2f2d0f0e8/b83a679ceead40f08e9c8b5da59181c2/FLAGc8fcbfc69 [2019-12-07 12:04:18,918 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/data/2f2d0f0e8/b83a679ceead40f08e9c8b5da59181c2 [2019-12-07 12:04:18,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:04:18,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:04:18,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:04:18,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:04:18,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:04:18,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:04:18" (1/1) ... [2019-12-07 12:04:18,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1127a676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:18, skipping insertion in model container [2019-12-07 12:04:18,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:04:18" (1/1) ... [2019-12-07 12:04:18,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:04:18,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:04:19,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:04:19,040 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:04:19,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:04:19,093 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:04:19,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19 WrapperNode [2019-12-07 12:04:19,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:04:19,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:04:19,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:04:19,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:04:19,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:04:19,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:04:19,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:04:19,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:04:19,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... [2019-12-07 12:04:19,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:04:19,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:04:19,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:04:19,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:04:19,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:04:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:04:19,258 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:04:19,258 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 12:04:19,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:19 BoogieIcfgContainer [2019-12-07 12:04:19,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:04:19,259 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:04:19,259 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:04:19,261 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:04:19,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:04:19,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:04:18" (1/3) ... [2019-12-07 12:04:19,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18de4239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:04:19, skipping insertion in model container [2019-12-07 12:04:19,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:04:19,263 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:04:19" (2/3) ... [2019-12-07 12:04:19,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18de4239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:04:19, skipping insertion in model container [2019-12-07 12:04:19,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:04:19,263 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:19" (3/3) ... [2019-12-07 12:04:19,264 INFO L371 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_1.c [2019-12-07 12:04:19,293 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:04:19,293 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:04:19,293 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:04:19,293 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:04:19,293 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:04:19,294 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:04:19,294 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:04:19,294 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:04:19,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-12-07 12:04:19,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 12:04:19,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:04:19,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:04:19,320 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 12:04:19,320 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 12:04:19,320 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:04:19,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-12-07 12:04:19,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 12:04:19,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:04:19,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:04:19,321 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 12:04:19,321 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 12:04:19,326 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L17true assume !!(main_~n~0 > 0);main_~i~0 := 0; 8#L18-2true [2019-12-07 12:04:19,326 INFO L796 eck$LassoCheckResult]: Loop: 8#L18-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 4#L5true assume !(0 == __VERIFIER_assert_~cond); 14#L5-2true main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2; 8#L18-2true [2019-12-07 12:04:19,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:04:19,330 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-12-07 12:04:19,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:04:19,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380749763] [2019-12-07 12:04:19,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:04:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:04:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:04:19,403 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:04:19,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:04:19,404 INFO L82 PathProgramCache]: Analyzing trace with hash 43921, now seen corresponding path program 1 times [2019-12-07 12:04:19,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:04:19,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953204647] [2019-12-07 12:04:19,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:04:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:04:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:04:19,417 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:04:19,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:04:19,418 INFO L82 PathProgramCache]: Analyzing trace with hash 29745548, now seen corresponding path program 1 times [2019-12-07 12:04:19,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:04:19,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148533355] [2019-12-07 12:04:19,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:04:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:04:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:04:19,432 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:04:19,464 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:04:19,465 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:04:19,465 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:04:19,465 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:04:19,465 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:04:19,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:04:19,465 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:04:19,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1.c_Iteration1_Loop [2019-12-07 12:04:19,466 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:04:19,466 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:04:19,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,570 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:04:19,571 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,584 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,584 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,591 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,592 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,595 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:04:19,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,615 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,615 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] [2019-12-07 12:04:19,632 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:04:19,632 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:04:19,632 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:04:19,632 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:04:19,632 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 12:04:19,632 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,632 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:04:19,632 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:04:19,633 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1.c_Iteration1_Lasso [2019-12-07 12:04:19,633 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:04:19,633 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:04:19,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:04:19,713 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:04:19,713 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,716 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 12:04:19,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,736 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1}, {ULTIMATE.start_main_~i~0=2}, {ULTIMATE.start_main_~i~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,742 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,742 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,750 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=0} Honda state: {ULTIMATE.start_main_~n~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,756 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,756 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,765 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,765 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,772 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,772 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:04:19,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 12:04:19,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 12:04:19,779 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 12:04:19,779 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-12-07 12:04:19,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:04:19 BoogieIcfgContainer [2019-12-07 12:04:19,794 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:04:19,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:04:19,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:04:19,794 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:04:19,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:04:19" (3/4) ... [2019-12-07 12:04:19,796 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 12:04:19,821 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6109fbf8-9d90-412a-bd1d-216aa4617276/bin/uautomizer/witness.graphml [2019-12-07 12:04:19,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:04:19,823 INFO L168 Benchmark]: Toolchain (without parser) took 901.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 939.3 MB in the beginning and 948.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:19,823 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:19,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:19,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:19,824 INFO L168 Benchmark]: Boogie Preprocessor took 11.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:19,824 INFO L168 Benchmark]: RCFGBuilder took 133.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:19,825 INFO L168 Benchmark]: BuchiAutomizer took 534.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 948.3 MB in the end (delta: 103.4 MB). Peak memory consumption was 103.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:04:19,825 INFO L168 Benchmark]: Witness Printer took 27.53 ms. Allocated memory is still 1.1 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:04:19,827 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 133.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 534.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 948.3 MB in the end (delta: 103.4 MB). Peak memory consumption was 103.4 MB. Max. memory is 11.5 GB. * Witness Printer took 27.53 ms. Allocated memory is still 1.1 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: Lassos: inital28 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite144 ukn100 eq199 hnf92 smp47 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25a75b5e=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@9f3ec79=0, x=0, n=0, y=0, i=0} State at position 1 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25a75b5e=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@9f3ec79=0, x=0, n=1, y=0, i=0} For i>1, the state at position i is {cond=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25a75b5e=0 + sum_{k=0}^i 0, \old(cond)=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@9f3ec79=0 + sum_{k=0}^i 0, x=0 + sum_{k=0}^i 0, n=1 + sum_{k=0}^i 0, y=0 + sum_{k=0}^i 0, i=0 + sum_{k=0}^i 1 + 2 + -2} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 18]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L14] unsigned int i=0; [L15] int x=0, y=0; [L16] int n=__VERIFIER_nondet_int(); [L17] COND FALSE !(!(n>0)) [L18] i=0 Loop: [L18] COND TRUE 1 [L5] COND FALSE !(!(cond)) [L18] i++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...