./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/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_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/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 64bit --witnessprinter.graph.data.programhash e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:58:26,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:58:26,583 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 02:58:26,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:58:26,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:58:26,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:58:26,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:58:26,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:58:26,613 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:58:26,613 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:58:26,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:58:26,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:58:26,615 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:58:26,616 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 02:58:26,616 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 02:58:26,617 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 02:58:26,617 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 02:58:26,618 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 02:58:26,618 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 02:58:26,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:58:26,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 02:58:26,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:58:26,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:58:26,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 02:58:26,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 02:58:26,621 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 02:58:26,622 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:58:26,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:58:26,623 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 02:58:26,623 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:58:26,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:58:26,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:58:26,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:58:26,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:58:26,625 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 02:58:26,625 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_348e47c3-3414-43fc-912e-fdd42374309f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 [2023-11-29 02:58:26,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:58:26,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:58:26,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:58:26,873 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:58:26,873 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:58:26,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/c.08.c [2023-11-29 02:58:29,770 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:58:29,913 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:58:29,914 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/sv-benchmarks/c/termination-restricted-15/c.08.c [2023-11-29 02:58:29,919 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/data/ccb7d2a51/061a5421f27c4d9292fa558713309f06/FLAG2cd05f349 [2023-11-29 02:58:29,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/data/ccb7d2a51/061a5421f27c4d9292fa558713309f06 [2023-11-29 02:58:29,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:58:29,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:58:29,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:58:29,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:58:29,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:58:29,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:29,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6fe424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:29, skipping insertion in model container [2023-11-29 02:58:29,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:58:29" (1/1) ... [2023-11-29 02:58:29,963 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:58:30,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:58:30,106 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:58:30,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:58:30,131 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:58:30,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30 WrapperNode [2023-11-29 02:58:30,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:58:30,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:58:30,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:58:30,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:58:30,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,160 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-11-29 02:58:30,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:58:30,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:58:30,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:58:30,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:58:30,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,172 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,178 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 02:58:30,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:58:30,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:58:30,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:58:30,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:58:30,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (1/1) ... [2023-11-29 02:58:30,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:30,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:30,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:30,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 02:58:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:58:30,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:58:30,329 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:58:30,331 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:58:30,382 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:58:30,390 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:58:30,391 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 02:58:30,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:58:30 BoogieIcfgContainer [2023-11-29 02:58:30,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:58:30,394 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 02:58:30,394 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 02:58:30,398 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 02:58:30,398 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:58:30,398 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 02:58:29" (1/3) ... [2023-11-29 02:58:30,399 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b1f347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:58:30, skipping insertion in model container [2023-11-29 02:58:30,400 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:58:30,400 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:58:30" (2/3) ... [2023-11-29 02:58:30,400 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b1f347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:58:30, skipping insertion in model container [2023-11-29 02:58:30,400 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:58:30,400 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:58:30" (3/3) ... [2023-11-29 02:58:30,402 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.08.c [2023-11-29 02:58:30,457 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 02:58:30,457 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 02:58:30,458 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 02:58:30,458 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 02:58:30,458 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 02:58:30,458 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 02:58:30,458 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 02:58:30,459 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 02:58:30,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 02:58:30,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 02:58:30,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:58:30,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:58:30,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:58:30,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 02:58:30,487 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 02:58:30,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 02:58:30,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 02:58:30,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:58:30,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:58:30,489 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:58:30,489 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 02:58:30,496 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 4#L10-2true [2023-11-29 02:58:30,496 INFO L750 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 2#L12-2true assume !(main_~j~0#1 <= main_~i~0#1 - 1); 5#L12-3true main_~i~0#1 := main_~i~0#1 - 1; 4#L10-2true [2023-11-29 02:58:30,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:30,502 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 02:58:30,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:30,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101787232] [2023-11-29 02:58:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:30,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:30,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:58:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:30,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:58:30,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-11-29 02:58:30,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:30,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695283214] [2023-11-29 02:58:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:30,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:30,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:58:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:30,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:58:30,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2023-11-29 02:58:30,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:30,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432488000] [2023-11-29 02:58:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:30,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:30,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:58:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:30,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:58:30,719 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:58:30,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:58:30,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:58:30,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:58:30,720 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:58:30,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:30,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:58:30,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:58:30,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration1_Loop [2023-11-29 02:58:30,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:58:30,721 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:58:30,734 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 02:58:30,745 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 02:58:30,750 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 02:58:30,754 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 02:58:30,832 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:58:30,833 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:58:30,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:30,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:30,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:30,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 02:58:30,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:30,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:30,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:58:30,864 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:58:30,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:58:30,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:30,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:30,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:30,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 02:58:30,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:30,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:30,892 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:58:30,892 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:58:30,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 02:58:30,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:30,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:30,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:30,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 02:58:30,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:30,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:30,913 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:58:30,913 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:58:30,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-29 02:58:30,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:30,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:30,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:30,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 02:58:30,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:30,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:30,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 02:58:30,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:30,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:30,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:30,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 02:58:30,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:58:30,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:30,960 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:58:30,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 02:58:30,964 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:58:30,965 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:58:30,965 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:58:30,965 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:58:30,965 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:58:30,965 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:30,965 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:58:30,965 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:58:30,965 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration1_Loop [2023-11-29 02:58:30,965 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:58:30,965 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:58:30,968 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 02:58:30,972 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 02:58:30,975 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 02:58:30,979 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 02:58:31,031 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:58:31,035 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:58:31,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,037 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 02:58:31,039 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 02:58:31,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:58:31,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:58:31,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:58:31,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:58:31,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 02:58:31,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 02:58:31,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:58:31,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 02:58:31,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,067 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 02:58:31,071 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 02:58:31,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:58:31,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:58:31,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:58:31,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:58:31,086 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 02:58:31,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 02:58:31,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:58:31,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-29 02:58:31,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,097 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 02:58:31,101 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 02:58:31,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:58:31,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:58:31,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:58:31,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:58:31,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:58:31,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:58:31,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:58:31,120 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:58:31,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 02:58:31,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,125 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 02:58:31,127 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 02:58:31,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:58:31,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:58:31,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:58:31,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:58:31,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:58:31,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:58:31,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:58:31,142 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:58:31,145 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:58:31,145 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 02:58:31,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,177 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 02:58:31,181 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:58:31,181 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:58:31,181 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:58:31,182 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2023-11-29 02:58:31,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 02:58:31,189 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:58:31,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:31,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:58:31,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:31,231 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:58:31,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:31,257 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 02:58:31,288 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 02:58:31,290 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 02:58:31,342 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 22 states and 34 transitions. Complement of second has 8 states. [2023-11-29 02:58:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-29 02:58:31,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 02:58:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-11-29 02:58:31,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-29 02:58:31,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:31,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-29 02:58:31,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:31,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-29 02:58:31,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:31,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2023-11-29 02:58:31,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 02:58:31,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 8 states and 11 transitions. [2023-11-29 02:58:31,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-29 02:58:31,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-29 02:58:31,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-29 02:58:31,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:58:31,361 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 02:58:31,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-29 02:58:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-11-29 02:58:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 02:58:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-29 02:58:31,382 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-11-29 02:58:31,382 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-11-29 02:58:31,382 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 02:58:31,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-11-29 02:58:31,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 02:58:31,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:58:31,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:58:31,383 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 02:58:31,383 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 02:58:31,383 INFO L748 eck$LassoCheckResult]: Stem: 78#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 79#L-1 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_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 76#L10-2 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 73#L12-2 [2023-11-29 02:58:31,383 INFO L750 eck$LassoCheckResult]: Loop: 73#L12-2 assume !!(main_~j~0#1 <= main_~i~0#1 - 1);main_~j~0#1 := 1 + main_~j~0#1; 73#L12-2 [2023-11-29 02:58:31,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:31,384 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-29 02:58:31,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:31,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302216121] [2023-11-29 02:58:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:31,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:31,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:58:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:31,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:58:31,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:31,392 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-11-29 02:58:31,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:31,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303617551] [2023-11-29 02:58:31,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:31,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:31,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:58:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:31,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:58:31,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:31,400 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-11-29 02:58:31,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:31,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080007620] [2023-11-29 02:58:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:31,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:31,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:58:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:31,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:58:31,424 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:58:31,425 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:58:31,425 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:58:31,425 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:58:31,425 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:58:31,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:58:31,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:58:31,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration2_Loop [2023-11-29 02:58:31,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:58:31,425 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:58:31,427 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 02:58:31,430 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 02:58:31,433 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 02:58:31,473 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:58:31,473 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:58:31,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,474 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 02:58:31,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:31,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:31,502 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:58:31,502 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:58:31,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 02:58:31,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,507 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 02:58:31,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:31,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:31,528 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:58:31,528 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:58:31,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 02:58:31,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,533 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 02:58:31,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:31,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:31,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 02:58:31,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,553 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 02:58:31,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:58:31,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:31,683 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:58:31,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 02:58:31,686 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:58:31,686 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:58:31,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:58:31,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:58:31,687 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:58:31,687 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:58:31,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:58:31,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration2_Loop [2023-11-29 02:58:31,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:58:31,687 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:58:31,688 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 02:58:31,691 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 02:58:31,697 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 02:58:31,735 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:58:31,735 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:58:31,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,736 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 02:58:31,740 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 02:58:31,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:58:31,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:58:31,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:58:31,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:58:31,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 02:58:31,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 02:58:31,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:58:31,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 02:58:31,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,762 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 02:58:31,765 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 02:58:31,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:58:31,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:58:31,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:58:31,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:58:31,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:58:31,777 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:58:31,777 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:58:31,779 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:58:31,782 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:58:31,782 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 02:58:31,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,783 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 02:58:31,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:58:31,787 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:58:31,787 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:58:31,787 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-29 02:58:31,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 02:58:31,794 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:58:31,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:31,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:58:31,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:31,821 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:58:31,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:31,822 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 02:58:31,822 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 02:58:31,823 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 02:58:31,837 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 19 transitions. Complement of second has 5 states. [2023-11-29 02:58:31,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 02:58:31,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 02:58:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 02:58:31,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-29 02:58:31,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:31,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-29 02:58:31,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:31,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-29 02:58:31,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:31,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2023-11-29 02:58:31,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 02:58:31,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2023-11-29 02:58:31,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-29 02:58:31,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-11-29 02:58:31,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2023-11-29 02:58:31,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:58:31,842 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-11-29 02:58:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2023-11-29 02:58:31,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2023-11-29 02:58:31,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 02:58:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-29 02:58:31,843 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-29 02:58:31,843 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-29 02:58:31,844 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 02:58:31,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2023-11-29 02:58:31,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 02:58:31,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:58:31,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:58:31,845 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-11-29 02:58:31,845 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 02:58:31,845 INFO L748 eck$LassoCheckResult]: Stem: 130#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 131#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~i~0#1, main_~j~0#1;havoc main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 128#L10-2 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 126#L12-2 assume !(main_~j~0#1 <= main_~i~0#1 - 1); 127#L12-3 main_~i~0#1 := main_~i~0#1 - 1; 129#L10-2 assume !!(main_~i~0#1 >= 0);main_~j~0#1 := 0; 125#L12-2 [2023-11-29 02:58:31,845 INFO L750 eck$LassoCheckResult]: Loop: 125#L12-2 assume !!(main_~j~0#1 <= main_~i~0#1 - 1);main_~j~0#1 := 1 + main_~j~0#1; 125#L12-2 [2023-11-29 02:58:31,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:31,846 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times [2023-11-29 02:58:31,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:31,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905384197] [2023-11-29 02:58:31,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:31,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:31,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:58:31,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:58:31,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905384197] [2023-11-29 02:58:31,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905384197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:58:31,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:58:31,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:58:31,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225712771] [2023-11-29 02:58:31,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:58:31,917 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:58:31,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:31,918 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-11-29 02:58:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:58:31,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999535966] [2023-11-29 02:58:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:58:31,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:58:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:31,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:58:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:58:31,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:58:31,942 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:58:31,942 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:58:31,942 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:58:31,942 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:58:31,942 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:58:31,942 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,942 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:58:31,942 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:58:31,943 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration3_Loop [2023-11-29 02:58:31,943 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:58:31,943 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:58:31,944 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 02:58:31,947 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 02:58:31,954 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 02:58:31,986 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:58:31,986 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:58:31,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:31,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:31,988 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:31,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 02:58:31,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:31,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:32,009 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:58:32,009 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:58:32,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-29 02:58:32,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:32,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:32,014 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:32,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 02:58:32,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:58:32,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:32,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-29 02:58:32,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:32,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:32,033 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:32,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 02:58:32,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:58:32,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:58:32,166 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:58:32,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 02:58:32,170 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:58:32,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:58:32,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:58:32,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:58:32,170 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:58:32,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:32,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:58:32,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:58:32,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.08.c_Iteration3_Loop [2023-11-29 02:58:32,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:58:32,170 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:58:32,172 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 02:58:32,174 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 02:58:32,180 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 02:58:32,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 02:58:32,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-29 02:58:32,229 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:58:32,229 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:58:32,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:32,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:32,231 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:32,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 02:58:32,241 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 02:58:32,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:58:32,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:58:32,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:58:32,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:58:32,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 02:58:32,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 02:58:32,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:58:32,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-29 02:58:32,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:32,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:32,273 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:32,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 02:58:32,277 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 02:58:32,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:58:32,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:58:32,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:58:32,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:58:32,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:58:32,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:58:32,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:58:32,292 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:58:32,295 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:58:32,295 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 02:58:32,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:58:32,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:58:32,297 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:58:32,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-29 02:58:32,300 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:58:32,300 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:58:32,300 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:58:32,300 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-29 02:58:32,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-29 02:58:32,304 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:58:32,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:32,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:58:32,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:32,347 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:58:32,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:32,348 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 02:58:32,348 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 02:58:32,349 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:58:32,360 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 12 states and 16 transitions. Complement of second has 5 states. [2023-11-29 02:58:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 02:58:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:58:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 02:58:32,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 1 letters. [2023-11-29 02:58:32,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:32,363 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:58:32,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:32,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:58:32,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:32,396 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:58:32,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:32,396 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 02:58:32,397 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 02:58:32,397 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:58:32,412 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 12 states and 16 transitions. Complement of second has 5 states. [2023-11-29 02:58:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 02:58:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:58:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 02:58:32,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 1 letters. [2023-11-29 02:58:32,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:32,415 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:58:32,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:58:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:32,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:58:32,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:58:32,450 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:58:32,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:58:32,450 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 02:58:32,451 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 02:58:32,451 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:58:32,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 10 states and 12 transitions. Complement of second has 4 states. [2023-11-29 02:58:32,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 02:58:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:58:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-11-29 02:58:32,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2023-11-29 02:58:32,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:32,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-29 02:58:32,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:32,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-29 02:58:32,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:58:32,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2023-11-29 02:58:32,473 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:58:32,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2023-11-29 02:58:32,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 02:58:32,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 02:58:32,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 02:58:32,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:58:32,474 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:58:32,474 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:58:32,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:58:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:58:32,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:58:32,478 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 02:58:32,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:58:32,481 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-29 02:58:32,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-29 02:58:32,481 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:58:32,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:58:32,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 02:58:32,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 02:58:32,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 02:58:32,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:58:32,482 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:58:32,482 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:58:32,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:58:32,483 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:58:32,483 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 02:58:32,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:58:32,483 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:58:32,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 02:58:32,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 02:58:32 BoogieIcfgContainer [2023-11-29 02:58:32,491 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 02:58:32,491 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:58:32,491 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:58:32,491 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:58:32,492 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:58:30" (3/4) ... [2023-11-29 02:58:32,493 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:58:32,494 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:58:32,495 INFO L158 Benchmark]: Toolchain (without parser) took 2559.76ms. Allocated memory is still 174.1MB. Free memory was 137.0MB in the beginning and 125.2MB in the end (delta: 11.8MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-11-29 02:58:32,495 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:58:32,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.77ms. Allocated memory is still 174.1MB. Free memory was 136.6MB in the beginning and 127.5MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:58:32,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.32ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 126.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:58:32,497 INFO L158 Benchmark]: Boogie Preprocessor took 25.77ms. Allocated memory is still 174.1MB. Free memory was 126.0MB in the beginning and 124.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:58:32,497 INFO L158 Benchmark]: RCFGBuilder took 205.33ms. Allocated memory is still 174.1MB. Free memory was 124.7MB in the beginning and 116.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 02:58:32,498 INFO L158 Benchmark]: BuchiAutomizer took 2097.01ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 126.2MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:58:32,498 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 174.1MB. Free memory was 126.2MB in the beginning and 125.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:58:32,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.77ms. Allocated memory is still 174.1MB. Free memory was 136.6MB in the beginning and 127.5MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.32ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 126.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.77ms. Allocated memory is still 174.1MB. Free memory was 126.0MB in the beginning and 124.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 205.33ms. Allocated memory is still 174.1MB. Free memory was 124.7MB in the beginning and 116.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2097.01ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 126.2MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 174.1MB. Free memory was 126.2MB in the beginning and 125.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((2 * i) + 1) and consists of 5 locations. One deterministic module has affine ranking function ((-1 * j) + i) and consists of 3 locations. One nondeterministic module has affine ranking function ((-1 * j) + i) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 19 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax197 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf92 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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 02:58:32,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-29 02:58:32,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348e47c3-3414-43fc-912e-fdd42374309f/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