./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/cohencu1-both-t.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/cohencu1-both-t.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya --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 32bit --witnessprinter.graph.data.programhash e23e5df30109903bd62a16f3045e004b3c50603f7ba92843ac57eff9ce17698d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:29:55,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:29:55,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 02:29:55,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:29:55,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:29:55,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:29:55,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:29:55,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:29:55,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:29:55,555 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:29:55,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:29:55,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:29:55,557 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:29:55,558 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 02:29:55,558 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 02:29:55,559 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 02:29:55,559 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 02:29:55,560 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 02:29:55,561 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 02:29:55,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:29:55,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 02:29:55,563 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:29:55,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:29:55,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:29:55,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:29:55,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 02:29:55,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 02:29:55,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 02:29:55,567 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:29:55,567 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:29:55,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:29:55,568 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 02:29:55,569 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:29:55,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:29:55,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:29:55,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:29:55,570 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:29:55,571 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 02:29:55,571 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_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e23e5df30109903bd62a16f3045e004b3c50603f7ba92843ac57eff9ce17698d [2023-11-29 02:29:55,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:29:55,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:29:55,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:29:55,859 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:29:55,860 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:29:55,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-nla/cohencu1-both-t.c [2023-11-29 02:29:59,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:29:59,220 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:29:59,221 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/sv-benchmarks/c/termination-nla/cohencu1-both-t.c [2023-11-29 02:29:59,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/data/bcd337f1b/09bd79ffb7ec4951b61e78bce4782b60/FLAG9d4b2204e [2023-11-29 02:29:59,241 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/data/bcd337f1b/09bd79ffb7ec4951b61e78bce4782b60 [2023-11-29 02:29:59,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:29:59,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:29:59,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:29:59,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:29:59,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:29:59,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2863e91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59, skipping insertion in model container [2023-11-29 02:29:59,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,281 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:29:59,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:29:59,440 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:29:59,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:29:59,469 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:29:59,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59 WrapperNode [2023-11-29 02:29:59,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:29:59,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:29:59,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:29:59,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:29:59,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,506 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-11-29 02:29:59,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:29:59,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:29:59,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:29:59,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:29:59,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,525 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 02:29:59,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:29:59,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:29:59,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:29:59,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:29:59,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (1/1) ... [2023-11-29 02:29:59,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:29:59,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:59,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:29:59,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 02:29:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:29:59,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:29:59,672 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:29:59,674 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:29:59,750 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:29:59,762 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:29:59,762 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:29:59,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:29:59 BoogieIcfgContainer [2023-11-29 02:29:59,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:29:59,766 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 02:29:59,766 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 02:29:59,770 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 02:29:59,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:29:59,770 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 02:29:59" (1/3) ... [2023-11-29 02:29:59,771 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4195c72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:29:59, skipping insertion in model container [2023-11-29 02:29:59,771 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:29:59,772 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:29:59" (2/3) ... [2023-11-29 02:29:59,772 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4195c72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:29:59, skipping insertion in model container [2023-11-29 02:29:59,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:29:59,772 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:29:59" (3/3) ... [2023-11-29 02:29:59,774 INFO L332 chiAutomizerObserver]: Analyzing ICFG cohencu1-both-t.c [2023-11-29 02:29:59,832 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 02:29:59,832 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 02:29:59,833 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 02:29:59,833 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 02:29:59,833 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 02:29:59,833 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 02:29:59,833 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 02:29:59,834 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 02:29:59,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-29 02:29:59,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 02:29:59,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:29:59,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:29:59,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:29:59,859 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 02:29:59,860 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 02:29:59,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-29 02:29:59,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 02:29:59,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:29:59,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:29:59,862 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:29:59,862 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 02:29:59,870 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~k~0#1;havoc main_~a~0#1;havoc main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~n~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 1;main_~z~0#1 := 6;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L34-2true [2023-11-29 02:29:59,870 INFO L750 eck$LassoCheckResult]: Loop: 6#L34-2true assume !!(6 + 6 * main_~n~0#1 <= main_~k~0#1);main_~n~0#1 := 1 + main_~n~0#1;main_~x~0#1 := main_~x~0#1 + main_~y~0#1;main_~y~0#1 := main_~y~0#1 + main_~z~0#1;main_~z~0#1 := 6 + main_~z~0#1; 6#L34-2true [2023-11-29 02:29:59,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 02:29:59,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:59,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548059424] [2023-11-29 02:29:59,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:59,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:29:59,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:29:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:30:00,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:30:00,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:30:00,019 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-29 02:30:00,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:30:00,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419188282] [2023-11-29 02:30:00,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:30:00,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:30:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:30:00,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:30:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:30:00,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:30:00,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:30:00,049 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-29 02:30:00,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:30:00,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853792741] [2023-11-29 02:30:00,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:30:00,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:30:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:30:00,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:30:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:30:00,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:30:00,205 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:30:00,206 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:30:00,206 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:30:00,206 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:30:00,207 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:30:00,207 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,207 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:30:00,207 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:30:00,207 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-t.c_Iteration1_Loop [2023-11-29 02:30:00,208 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:30:00,208 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:30:00,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:30:00,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:30:00,363 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:30:00,364 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:30:00,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:00,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:30:00,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 02:30:00,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:30:00,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:30:00,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-29 02:30:00,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:00,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:30:00,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 02:30:00,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:30:00,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:30:00,603 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:30:00,603 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~z~0#1=5, ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~z~0#1=5, ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-4, ULTIMATE.start_main_~z~0#1=6, ULTIMATE.start_main_~y~0#1=-1}, {ULTIMATE.start_main_~x~0#1=-1, ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=6}, {ULTIMATE.start_main_~x~0#1=6, ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2023-11-29 02:30:00,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 02:30:00,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:00,609 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:30:00,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 02:30:00,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:30:00,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:30:00,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 02:30:00,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:00,632 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:30:00,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 02:30:00,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:30:00,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:30:00,801 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:30:00,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 02:30:00,805 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:30:00,805 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:30:00,805 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:30:00,805 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:30:00,806 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:30:00,806 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,806 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:30:00,806 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:30:00,806 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-t.c_Iteration1_Loop [2023-11-29 02:30:00,806 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:30:00,806 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:30:00,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:30:00,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:30:00,880 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:30:00,884 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:30:00,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:00,887 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:30:00,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 02:30:00,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:30:00,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:30:00,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:30:00,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:30:00,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:30:00,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:30:00,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:30:00,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:30:00,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:30:00,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 02:30:00,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:00,921 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:30:00,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 02:30:00,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:30:00,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:30:00,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:30:00,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:30:00,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:30:00,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:30:00,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:30:00,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:30:00,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:30:00,948 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-29 02:30:00,949 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 02:30:00,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:30:00,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:30:00,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:30:00,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 02:30:00,967 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:30:00,968 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:30:00,968 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:30:00,968 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~n~0#1) = 1*ULTIMATE.start_main_~k~0#1 - 6*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-29 02:30:00,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 02:30:00,977 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:30:01,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:30:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:30:01,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:30:01,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:30:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:30:01,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:30:01,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:30:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:30:01,067 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 02:30:01,069 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-29 02:30:01,102 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Result 14 states and 17 transitions. Complement of second has 6 states. [2023-11-29 02:30:01,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 02:30:01,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-29 02:30:01,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-29 02:30:01,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 1 letters. [2023-11-29 02:30:01,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:30:01,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-29 02:30:01,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:30:01,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-29 02:30:01,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:30:01,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-29 02:30:01,115 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:30:01,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2023-11-29 02:30:01,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 02:30:01,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 02:30:01,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 02:30:01,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:30:01,119 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:30:01,119 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:30:01,119 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:30:01,119 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 02:30:01,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:30:01,119 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:30:01,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 02:30:01,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 02:30:01 BoogieIcfgContainer [2023-11-29 02:30:01,126 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 02:30:01,126 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:30:01,126 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:30:01,127 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:30:01,127 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:29:59" (3/4) ... [2023-11-29 02:30:01,129 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:30:01,130 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:30:01,131 INFO L158 Benchmark]: Toolchain (without parser) took 1885.54ms. Allocated memory is still 157.3MB. Free memory was 113.0MB in the beginning and 106.3MB in the end (delta: 6.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-11-29 02:30:01,131 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:30:01,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.41ms. Allocated memory is still 157.3MB. Free memory was 113.0MB in the beginning and 103.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:30:01,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.25ms. Allocated memory is still 157.3MB. Free memory was 103.3MB in the beginning and 102.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:30:01,133 INFO L158 Benchmark]: Boogie Preprocessor took 29.00ms. Allocated memory is still 157.3MB. Free memory was 102.1MB in the beginning and 100.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:30:01,134 INFO L158 Benchmark]: RCFGBuilder took 227.57ms. Allocated memory is still 157.3MB. Free memory was 100.4MB in the beginning and 92.4MB in the end (delta: 8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:30:01,135 INFO L158 Benchmark]: BuchiAutomizer took 1360.08ms. Allocated memory is still 157.3MB. Free memory was 92.0MB in the beginning and 106.3MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:30:01,135 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 157.3MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:30:01,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.41ms. Allocated memory is still 157.3MB. Free memory was 113.0MB in the beginning and 103.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.25ms. Allocated memory is still 157.3MB. Free memory was 103.3MB in the beginning and 102.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.00ms. Allocated memory is still 157.3MB. Free memory was 102.1MB in the beginning and 100.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 227.57ms. Allocated memory is still 157.3MB. Free memory was 100.4MB in the beginning and 92.4MB in the end (delta: 8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1360.08ms. Allocated memory is still 157.3MB. Free memory was 92.0MB in the beginning and 106.3MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 157.3MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (k + (-6 * n)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 4 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq205 hnf91 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 02:30:01,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 02:30:01,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073dbaf1-d979-45d4-bbc4-333e9e285b46/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE