./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_21.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_21.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/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 012f84fd0ea677a0f91b2a112c75e9cee95427f9 .............................................................................................................................................................................................................................................................. 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 0.1.24-6b5699a [2019-11-25 08:47:45,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:47:45,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:47:45,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:47:45,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:47:45,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:47:45,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:47:45,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:47:45,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:47:45,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:47:45,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:47:45,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:47:45,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:47:45,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:47:45,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:47:45,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:47:45,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:47:45,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:47:45,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:47:45,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:47:45,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:47:45,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:47:45,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:47:45,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:47:45,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:47:45,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:47:45,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:47:45,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:47:45,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:47:45,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:47:45,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:47:45,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:47:45,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:47:45,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:47:45,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:47:45,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:47:45,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:47:45,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:47:45,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:47:45,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:47:45,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:47:45,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:47:45,535 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:47:45,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:47:45,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:47:45,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:47:45,536 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:47:45,537 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:47:45,537 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:47:45,537 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:47:45,537 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:47:45,537 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:47:45,537 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:47:45,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:47:45,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:47:45,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:47:45,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:47:45,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:47:45,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:47:45,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:47:45,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:47:45,539 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:47:45,539 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:47:45,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:47:45,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:47:45,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:47:45,540 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:47:45,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:47:45,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:47:45,541 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:47:45,541 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:47:45,541 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_1b4700a9-15aa-4077-bdab-a89c40e19733/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 -> 012f84fd0ea677a0f91b2a112c75e9cee95427f9 [2019-11-25 08:47:45,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:47:45,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:47:45,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:47:45,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:47:45,734 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:47:45,735 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_21.c [2019-11-25 08:47:45,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/data/13fd1f37e/7db41c86665c4a5caebdd48a51c6781e/FLAG805989479 [2019-11-25 08:47:46,176 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:47:46,177 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/sv-benchmarks/c/termination-restricted-15/NO_21.c [2019-11-25 08:47:46,182 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/data/13fd1f37e/7db41c86665c4a5caebdd48a51c6781e/FLAG805989479 [2019-11-25 08:47:46,591 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/data/13fd1f37e/7db41c86665c4a5caebdd48a51c6781e [2019-11-25 08:47:46,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:47:46,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:47:46,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:46,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:47:46,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:47:46,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5093f83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46, skipping insertion in model container [2019-11-25 08:47:46,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:47:46,630 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:47:46,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:46,755 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:46,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:46,849 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:46,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46 WrapperNode [2019-11-25 08:47:46,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:46,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:46,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:46,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:46,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:46,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:46,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:46,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:46,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... [2019-11-25 08:47:46,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:46,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:46,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:46,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:46,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/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 [2019-11-25 08:47:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:47,116 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:47,116 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:47:47,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:47 BoogieIcfgContainer [2019-11-25 08:47:47,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:47,118 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:47:47,118 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:47:47,121 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:47:47,122 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:47,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:47:46" (1/3) ... [2019-11-25 08:47:47,124 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39671329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:47, skipping insertion in model container [2019-11-25 08:47:47,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:47,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:46" (2/3) ... [2019-11-25 08:47:47,125 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39671329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:47:47, skipping insertion in model container [2019-11-25 08:47:47,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:47:47,126 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:47" (3/3) ... [2019-11-25 08:47:47,127 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_21.c [2019-11-25 08:47:47,183 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:47:47,184 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:47:47,184 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:47:47,185 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:47,185 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:47,185 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:47:47,185 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:47,187 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:47:47,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-25 08:47:47,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:47:47,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:47,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:47,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:47:47,223 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:47:47,224 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:47:47,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-25 08:47:47,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:47:47,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:47:47,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:47:47,225 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:47:47,225 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:47:47,232 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 5#L9-2true [2019-11-25 08:47:47,232 INFO L796 eck$LassoCheckResult]: Loop: 5#L9-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0;main_~i~0 := main_~i~0 - 1; 5#L9-2true [2019-11-25 08:47:47,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:47,238 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:47:47,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:47,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534908064] [2019-11-25 08:47:47,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:47,336 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:47,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:47,338 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-25 08:47:47,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:47,340 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880576271] [2019-11-25 08:47:47,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:47,355 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:47,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-25 08:47:47,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:47,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37192181] [2019-11-25 08:47:47,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:47:47,379 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:47:47,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:47:47 BoogieIcfgContainer [2019-11-25 08:47:47,541 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:47:47,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:47:47,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:47:47,542 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:47:47,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:47" (3/4) ... [2019-11-25 08:47:47,545 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:47:47,587 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1b4700a9-15aa-4077-bdab-a89c40e19733/bin/uautomizer/witness.graphml [2019-11-25 08:47:47,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:47:47,592 INFO L168 Benchmark]: Toolchain (without parser) took 995.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -139.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:47,592 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:47,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:47,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:47,597 INFO L168 Benchmark]: Boogie Preprocessor took 16.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:47,598 INFO L168 Benchmark]: RCFGBuilder took 226.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:47,598 INFO L168 Benchmark]: BuchiAutomizer took 423.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:47,599 INFO L168 Benchmark]: Witness Printer took 46.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:47,605 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -174.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 226.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 423.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Witness Printer took 46.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. 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 0.3s 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: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 Loop: [L9] COND TRUE i < 100 [L10] i = i+1 [L11] i = i-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...