./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/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 e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 ....................................................................................................................................................................................................................................................................... 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-cad4683 [2019-11-15 20:45:03,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:45:03,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:45:03,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:45:03,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:45:03,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:45:03,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:45:03,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:45:03,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:45:03,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:45:03,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:45:03,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:45:03,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:45:03,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:45:03,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:45:03,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:45:03,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:45:03,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:45:03,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:45:03,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:45:03,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:45:03,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:45:03,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:45:03,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:45:03,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:45:03,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:45:03,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:45:03,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:45:03,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:45:03,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:45:03,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:45:03,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:45:03,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:45:03,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:45:03,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:45:03,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:45:03,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:45:03,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:45:03,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:45:03,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:45:03,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:45:03,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 20:45:03,460 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:45:03,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:45:03,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:45:03,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:45:03,462 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:45:03,463 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:45:03,463 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:45:03,463 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:45:03,463 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:45:03,464 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:45:03,464 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:45:03,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:45:03,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:45:03,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:45:03,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:45:03,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:45:03,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:45:03,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:45:03,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:45:03,466 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:45:03,467 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:45:03,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:45:03,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:45:03,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:45:03,468 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:45:03,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:45:03,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:45:03,468 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:45:03,469 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:45:03,470 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_85b98803-3575-495f-8a0d-24928c1c1a03/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 -> e53f2fdb98621a674cb41b7388b3e8cc7db6ca72 [2019-11-15 20:45:03,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:45:03,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:45:03,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:45:03,544 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:45:03,546 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:45:03,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2019-11-15 20:45:03,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/data/020d648a2/8d76c37390964c48a1e7f0b9cf0b6603/FLAG9a9453799 [2019-11-15 20:45:03,977 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:45:03,977 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/sv-benchmarks/c/termination-crafted/NonTerminationSimple7.c [2019-11-15 20:45:03,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/data/020d648a2/8d76c37390964c48a1e7f0b9cf0b6603/FLAG9a9453799 [2019-11-15 20:45:04,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/data/020d648a2/8d76c37390964c48a1e7f0b9cf0b6603 [2019-11-15 20:45:04,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:45:04,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:45:04,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:45:04,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:45:04,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:45:04,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7dcf75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04, skipping insertion in model container [2019-11-15 20:45:04,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,378 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:45:04,393 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:45:04,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:45:04,542 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:45:04,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:45:04,643 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:45:04,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04 WrapperNode [2019-11-15 20:45:04,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:45:04,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:45:04,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:45:04,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:45:04,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:45:04,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:45:04,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:45:04,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:45:04,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... [2019-11-15 20:45:04,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:45:04,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:45:04,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:45:04,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:45:04,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/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 [2019-11-15 20:45:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:45:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:45:04,973 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:45:04,973 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 20:45:04,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:45:04 BoogieIcfgContainer [2019-11-15 20:45:04,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:45:04,976 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:45:04,976 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:45:04,981 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:45:04,981 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:45:04,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:45:04" (1/3) ... [2019-11-15 20:45:04,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f1e02a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:45:04, skipping insertion in model container [2019-11-15 20:45:04,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:45:04,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:45:04" (2/3) ... [2019-11-15 20:45:04,988 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f1e02a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:45:04, skipping insertion in model container [2019-11-15 20:45:04,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:45:04,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:45:04" (3/3) ... [2019-11-15 20:45:04,990 INFO L371 chiAutomizerObserver]: Analyzing ICFG NonTerminationSimple7.c [2019-11-15 20:45:05,052 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:45:05,053 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:45:05,053 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:45:05,053 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:45:05,053 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:45:05,054 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:45:05,054 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:45:05,054 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:45:05,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 20:45:05,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 20:45:05,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:45:05,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:45:05,097 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 20:45:05,097 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:45:05,097 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:45:05,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 20:45:05,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 20:45:05,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:45:05,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:45:05,099 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 20:45:05,100 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:45:05,108 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0;havoc main_~c~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L15true assume 0 == main_~c~0; 7#L16-2true [2019-11-15 20:45:05,108 INFO L793 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 + main_~c~0; 7#L16-2true [2019-11-15 20:45:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:45:05,115 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-15 20:45:05,124 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:45:05,125 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253168995] [2019-11-15 20:45:05,125 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:45:05,125 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:45:05,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:45:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:45:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:45:05,259 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:45:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:45:05,261 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2019-11-15 20:45:05,261 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:45:05,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100532890] [2019-11-15 20:45:05,263 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:45:05,263 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:45:05,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:45:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:45:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:45:05,288 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:45:05,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:45:05,293 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2019-11-15 20:45:05,293 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:45:05,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59929492] [2019-11-15 20:45:05,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:45:05,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:45:05,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:45:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:45:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:45:05,321 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:45:05,497 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-15 20:45:05,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:45:05 BoogieIcfgContainer [2019-11-15 20:45:05,533 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:45:05,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:45:05,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:45:05,534 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:45:05,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:45:04" (3/4) ... [2019-11-15 20:45:05,538 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 20:45:05,579 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_85b98803-3575-495f-8a0d-24928c1c1a03/bin/uautomizer/witness.graphml [2019-11-15 20:45:05,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:45:05,581 INFO L168 Benchmark]: Toolchain (without parser) took 1220.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:45:05,581 INFO L168 Benchmark]: CDTParser took 0.37 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. [2019-11-15 20:45:05,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -197.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:45:05,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.76 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. [2019-11-15 20:45:05,583 INFO L168 Benchmark]: Boogie Preprocessor took 23.48 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. [2019-11-15 20:45:05,584 INFO L168 Benchmark]: RCFGBuilder took 268.94 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. [2019-11-15 20:45:05,584 INFO L168 Benchmark]: BuchiAutomizer took 557.44 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:45:05,585 INFO L168 Benchmark]: Witness Printer took 45.45 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. [2019-11-15 20:45:05,593 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 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 284.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -197.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.76 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 23.48 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 268.94 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 557.44 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Witness Printer took 45.45 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 0.4s 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: 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: 16]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ab71bcb=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c1cd5bc=0, c=0, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int c, x; [L13] x = __VERIFIER_nondet_int() [L14] c = __VERIFIER_nondet_int() [L15] COND TRUE c == 0 Loop: [L16] COND TRUE x >= 0 [L17] x = x + c End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...