./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-04-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-04-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --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 f308da08c261d59eb95c200bdea9061877e2637c8f9041803c89ef49e63b8c52 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:59:46,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:46,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 20:59:46,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:46,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:46,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:46,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:46,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:46,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:46,290 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:46,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:46,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:46,293 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:46,295 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 20:59:46,296 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 20:59:46,296 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 20:59:46,296 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 20:59:46,297 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 20:59:46,297 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 20:59:46,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:46,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 20:59:46,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:59:46,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:46,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 20:59:46,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 20:59:46,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 20:59:46,301 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 20:59:46,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:46,301 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 20:59:46,302 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:46,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:46,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:46,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:46,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:59:46,305 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 20:59:46,305 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f308da08c261d59eb95c200bdea9061877e2637c8f9041803c89ef49e63b8c52 [2023-11-21 20:59:46,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:46,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:46,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:46,709 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:46,709 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:46,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-bwb/and-04-false.c [2023-11-21 20:59:49,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:59:49,986 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:59:49,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/sv-benchmarks/c/termination-bwb/and-04-false.c [2023-11-21 20:59:49,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/data/a5a5f281d/c21ebceb2a7c4403b7861946599fe7d0/FLAGe7d385124 [2023-11-21 20:59:50,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/data/a5a5f281d/c21ebceb2a7c4403b7861946599fe7d0 [2023-11-21 20:59:50,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:59:50,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:59:50,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:50,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:59:50,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:59:50,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ecee7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50, skipping insertion in model container [2023-11-21 20:59:50,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,043 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:59:50,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:50,211 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:59:50,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:50,257 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:59:50,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50 WrapperNode [2023-11-21 20:59:50,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:50,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:50,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:59:50,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:59:50,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,287 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-11-21 20:59:50,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:50,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:59:50,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:59:50,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:59:50,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,301 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,307 INFO L187 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-21 20:59:50,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,309 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:59:50,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:59:50,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:59:50,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:59:50,320 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (1/1) ... [2023-11-21 20:59:50,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:50,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:50,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:50,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 20:59:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:59:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:59:50,448 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:59:50,450 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:59:50,546 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:50,557 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:50,558 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 20:59:50,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:50 BoogieIcfgContainer [2023-11-21 20:59:50,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:50,561 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 20:59:50,561 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 20:59:50,564 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 20:59:50,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 20:59:50,566 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 08:59:50" (1/3) ... [2023-11-21 20:59:50,567 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f736152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 08:59:50, skipping insertion in model container [2023-11-21 20:59:50,567 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 20:59:50,567 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:50" (2/3) ... [2023-11-21 20:59:50,567 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f736152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 08:59:50, skipping insertion in model container [2023-11-21 20:59:50,568 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 20:59:50,568 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:50" (3/3) ... [2023-11-21 20:59:50,569 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-04-false.c [2023-11-21 20:59:50,626 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 20:59:50,626 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 20:59:50,626 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 20:59:50,626 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 20:59:50,627 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 20:59:50,627 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 20:59:50,627 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 20:59:50,627 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 20:59:50,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:50,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 20:59:50,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 20:59:50,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 20:59:50,653 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 20:59:50,654 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 20:59:50,654 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 20:59:50,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:59:50,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 20:59:50,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 20:59:50,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 20:59:50,656 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 20:59:50,656 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 20:59:50,662 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 8#L16-2true [2023-11-21 20:59:50,663 INFO L750 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(main_~x~0#1 < 8); 2#L16true assume !(0 == main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 8#L16-2true [2023-11-21 20:59:50,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:50,668 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 20:59:50,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:50,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372617270] [2023-11-21 20:59:50,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:50,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:50,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:59:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:50,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:59:50,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:50,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2023-11-21 20:59:50,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:50,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114609842] [2023-11-21 20:59:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:50,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:50,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:59:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:50,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:59:50,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:50,812 INFO L85 PathProgramCache]: Analyzing trace with hash 925812, now seen corresponding path program 1 times [2023-11-21 20:59:50,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:50,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146703429] [2023-11-21 20:59:50,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:50,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:50,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:59:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:59:50,838 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:59:50,966 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:59:50,967 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:59:50,967 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:59:50,967 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:59:50,967 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 20:59:50,968 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:50,968 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:59:50,968 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:59:50,968 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04-false.c_Iteration1_Loop [2023-11-21 20:59:50,969 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:59:50,969 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:59:50,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:59:51,104 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:59:51,105 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 20:59:51,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:51,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:51,109 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:51,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:59:51,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:59:51,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 20:59:51,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:51,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:51,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:51,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:51,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 20:59:51,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:59:51,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 20:59:51,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 20:59:51,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1}] Lambdas: [5, 7, 1] Nus: [0, 0] [2023-11-21 20:59:51,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:51,257 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:59:51,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:59:51,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:59:51,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:59:51,258 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 20:59:51,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:51,258 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:59:51,258 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:59:51,258 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04-false.c_Iteration1_Lasso [2023-11-21 20:59:51,258 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:59:51,258 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:59:51,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:59:51,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:59:51,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:59:51,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:59:51,379 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:59:51,379 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 20:59:51,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:51,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:51,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:51,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:59:51,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:59:51,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 20:59:51,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 20:59:51,412 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 20:59:51,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:51,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:51,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:51,433 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:51,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 20:59:51,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:59:51,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:59:51,459 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 20:59:51,460 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 20:59:51,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:51,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:51,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:51,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:51,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:59:51,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:59:51,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 20:59:51,502 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 20:59:51,502 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 20:59:51,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:51,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:51,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:51,528 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:51,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:59:51,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:59:51,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 20:59:51,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:51,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:59:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:51,584 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:51,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 20:59:51,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:59:51,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 20:59:51,632 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 20:59:51,633 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1}] Lambdas: [5, 7, 1] Nus: [0, 0] [2023-11-21 20:59:51,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 20:59:51,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-21 20:59:51,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-21 20:59:51,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-21 20:59:51,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 08:59:51 BoogieIcfgContainer [2023-11-21 20:59:51,675 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 20:59:51,676 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 20:59:51,676 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 20:59:51,676 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 20:59:51,677 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:50" (3/4) ... [2023-11-21 20:59:51,678 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 20:59:51,714 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 20:59:51,715 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 20:59:51,717 INFO L158 Benchmark]: Toolchain (without parser) took 1702.62ms. Allocated memory is still 144.7MB. Free memory was 113.9MB in the beginning and 66.2MB in the end (delta: 47.7MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2023-11-21 20:59:51,717 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 144.7MB. Free memory was 116.3MB in the beginning and 116.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:51,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.76ms. Allocated memory is still 144.7MB. Free memory was 113.9MB in the beginning and 116.5MB in the end (delta: -2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 20:59:51,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.36ms. Allocated memory is still 144.7MB. Free memory was 116.5MB in the beginning and 115.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:59:51,719 INFO L158 Benchmark]: Boogie Preprocessor took 29.85ms. Allocated memory is still 144.7MB. Free memory was 115.0MB in the beginning and 113.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:59:51,720 INFO L158 Benchmark]: RCFGBuilder took 240.68ms. Allocated memory is still 144.7MB. Free memory was 113.3MB in the beginning and 104.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 20:59:51,721 INFO L158 Benchmark]: BuchiAutomizer took 1114.42ms. Allocated memory is still 144.7MB. Free memory was 104.5MB in the beginning and 67.7MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-21 20:59:51,721 INFO L158 Benchmark]: Witness Printer took 39.26ms. Allocated memory is still 144.7MB. Free memory was 67.7MB in the beginning and 66.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:59:51,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 144.7MB. Free memory was 116.3MB in the beginning and 116.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.76ms. Allocated memory is still 144.7MB. Free memory was 113.9MB in the beginning and 116.5MB in the end (delta: -2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.36ms. Allocated memory is still 144.7MB. Free memory was 116.5MB in the beginning and 115.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.85ms. Allocated memory is still 144.7MB. Free memory was 115.0MB in the beginning and 113.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 240.68ms. Allocated memory is still 144.7MB. Free memory was 113.3MB in the beginning and 104.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1114.42ms. Allocated memory is still 144.7MB. Free memory was 104.5MB in the beginning and 67.7MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 39.26ms. Allocated memory is still 144.7MB. Free memory was 67.7MB in the beginning and 66.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf156 smp91 tf106 neg100 sie111 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 15]: Nontermination argument in form of an infinite program execution. [2023-11-21 20:59:51,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-21 20:59:51,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-21 20:59:51,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-21 20:59:51,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-21 20:59:51,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-21 20:59:51,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-21 20:59:51,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated Nontermination argument in form of an infinite execution State at position 0 is {x=-8, \result=0} State at position 1 is {x=-8, \result=0} For i>1, the state at position i is {x=-8 + sum_{k=0}^i -1, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [5, 7, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x; [L14] x = __VERIFIER_nondet_int() Loop: [L15] COND TRUE x < 8 [L16] COND FALSE !(x == 0) [L20] x = x-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 20:59:51,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e017024-ed8c-444d-a620-11e25b25bcb1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)