./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.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_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/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_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/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_a199a229-f9ab-425b-a8bd-5e8a44acaa39/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 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:11:42,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:11:42,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 04:11:42,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:11:42,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:11:42,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:11:42,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:11:42,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:11:42,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:11:42,356 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:11:42,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:11:42,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:11:42,358 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:11:42,358 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 04:11:42,359 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 04:11:42,359 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 04:11:42,360 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 04:11:42,360 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 04:11:42,361 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 04:11:42,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:11:42,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 04:11:42,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:11:42,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:11:42,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 04:11:42,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 04:11:42,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 04:11:42,365 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:11:42,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:11:42,366 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 04:11:42,366 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:11:42,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:11:42,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:11:42,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:11:42,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:11:42,368 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 04:11:42,368 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_a199a229-f9ab-425b-a8bd-5e8a44acaa39/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc [2023-11-29 04:11:42,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:11:42,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:11:42,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:11:42,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:11:42,613 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:11:42,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2023-11-29 04:11:45,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:11:45,440 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:11:45,441 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2023-11-29 04:11:45,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/data/21adcc80e/6cad7413e83b40a68f75b22613d6f43d/FLAG9f57ce2ef [2023-11-29 04:11:45,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/data/21adcc80e/6cad7413e83b40a68f75b22613d6f43d [2023-11-29 04:11:45,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:11:45,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:11:45,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:11:45,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:11:45,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:11:45,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56aac38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45, skipping insertion in model container [2023-11-29 04:11:45,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,481 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:11:45,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:11:45,599 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:11:45,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:11:45,619 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:11:45,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45 WrapperNode [2023-11-29 04:11:45,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:11:45,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:11:45,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:11:45,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:11:45,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,641 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-11-29 04:11:45,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:11:45,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:11:45,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:11:45,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:11:45,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,657 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 04:11:45,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:11:45,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:11:45,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:11:45,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:11:45,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (1/1) ... [2023-11-29 04:11:45,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:45,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:45,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:45,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 04:11:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:11:45,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:11:45,807 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:11:45,808 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:11:45,854 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:11:45,861 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:11:45,862 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:11:45,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:11:45 BoogieIcfgContainer [2023-11-29 04:11:45,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:11:45,864 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 04:11:45,864 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 04:11:45,867 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 04:11:45,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:11:45,868 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 04:11:45" (1/3) ... [2023-11-29 04:11:45,868 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78478f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 04:11:45, skipping insertion in model container [2023-11-29 04:11:45,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:11:45,869 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:11:45" (2/3) ... [2023-11-29 04:11:45,869 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78478f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 04:11:45, skipping insertion in model container [2023-11-29 04:11:45,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:11:45,869 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:11:45" (3/3) ... [2023-11-29 04:11:45,871 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise.c [2023-11-29 04:11:45,923 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 04:11:45,923 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 04:11:45,923 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 04:11:45,923 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 04:11:45,923 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 04:11:45,923 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 04:11:45,924 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 04:11:45,924 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 04:11:45,927 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 04:11:45,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:45,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:11:45,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:11:45,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 04:11:45,946 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:11:45,946 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 04:11:45,947 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 04:11:45,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:45,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:11:45,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:11:45,948 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 04:11:45,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:11:45,956 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17true assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 2#L19-2true [2023-11-29 04:11:45,956 INFO L750 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 9#L19true assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 2#L19-2true [2023-11-29 04:11:45,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:45,960 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-29 04:11:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:45,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743326681] [2023-11-29 04:11:45,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:45,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:46,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:46,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:46,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:46,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-11-29 04:11:46,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:46,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379508340] [2023-11-29 04:11:46,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:46,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:46,086 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:46,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:46,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:46,094 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-11-29 04:11:46,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:46,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105474170] [2023-11-29 04:11:46,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:46,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:46,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:46,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:46,182 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:11:46,183 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:11:46,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:11:46,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:11:46,184 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:11:46,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:11:46,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:11:46,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2023-11-29 04:11:46,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:11:46,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:11:46,202 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 04:11:46,213 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 04:11:46,218 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 04:11:46,279 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:11:46,279 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:11:46,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:46,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:46,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 04:11:46,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:11:46,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:46,311 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:11:46,311 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 04:11:46,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-29 04:11:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:46,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:46,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 04:11:46,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:11:46,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:46,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:11:46,347 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 04:11:46,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 04:11:46,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:46,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:46,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 04:11:46,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:11:46,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:46,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-29 04:11:46,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:46,376 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:46,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 04:11:46,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:11:46,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:46,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:11:46,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 04:11:46,519 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:11:46,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:11:46,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:11:46,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:11:46,519 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:11:46,519 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,519 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:11:46,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:11:46,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2023-11-29 04:11:46,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:11:46,520 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:11:46,522 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 04:11:46,526 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 04:11:46,530 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 04:11:46,579 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:11:46,583 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:11:46,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:46,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:46,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 04:11:46,588 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 04:11:46,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:11:46,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:11:46,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:11:46,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:11:46,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:11:46,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:11:46,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:11:46,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 04:11:46,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:46,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:46,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 04:11:46,620 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 04:11:46,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:11:46,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:11:46,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:11:46,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:11:46,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:11:46,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:11:46,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:11:46,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 04:11:46,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:46,656 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:46,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 04:11:46,660 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 04:11:46,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:11:46,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:11:46,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:11:46,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:11:46,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:11:46,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:11:46,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:11:46,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:11:46,684 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-29 04:11:46,684 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 04:11:46,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:46,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:46,716 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:46,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 04:11:46,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:11:46,720 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:11:46,720 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:11:46,720 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 04:11:46,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 04:11:46,727 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:11:46,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 04:11:46,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:46,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:11:46,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:46,800 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:11:46,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:46,840 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 04:11:46,875 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 04:11:46,877 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 04:11:46,936 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 25 states and 33 transitions. Complement of second has 8 states. [2023-11-29 04:11:46,938 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 04:11:46,942 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 04:11:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2023-11-29 04:11:46,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-29 04:11:46,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:46,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-29 04:11:46,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:46,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-29 04:11:46,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:46,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-29 04:11:46,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:46,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2023-11-29 04:11:46,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 04:11:46,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-29 04:11:46,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-29 04:11:46,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:11:46,955 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-29 04:11:46,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-29 04:11:46,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-29 04:11:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) 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 04:11:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-29 04:11:46,980 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-29 04:11:46,980 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-29 04:11:46,980 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 04:11:46,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-29 04:11:46,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:46,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:11:46,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:11:46,981 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-29 04:11:46,981 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:11:46,981 INFO L748 eck$LassoCheckResult]: Stem: 83#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 84#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_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 81#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 82#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 80#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 76#L19-2 [2023-11-29 04:11:46,982 INFO L750 eck$LassoCheckResult]: Loop: 76#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 77#L19 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 76#L19-2 [2023-11-29 04:11:46,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:46,982 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-11-29 04:11:46,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:46,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802164388] [2023-11-29 04:11:46,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:46,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:46,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:46,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:46,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-11-29 04:11:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:46,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028487627] [2023-11-29 04:11:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:46,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:47,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:47,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:47,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:47,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2023-11-29 04:11:47,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:47,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58566986] [2023-11-29 04:11:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:47,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:11:47,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58566986] [2023-11-29 04:11:47,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58566986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:47,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:47,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:11:47,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254053160] [2023-11-29 04:11:47,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:47,132 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:11:47,132 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:11:47,133 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:11:47,133 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:11:47,133 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:11:47,133 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,133 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:11:47,133 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:11:47,133 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2023-11-29 04:11:47,133 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:11:47,133 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:11:47,135 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 04:11:47,140 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 04:11:47,147 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 04:11:47,183 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:11:47,183 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:11:47,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:47,188 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:47,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 04:11:47,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:11:47,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:47,215 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:11:47,216 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 04:11:47,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 04:11:47,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:47,221 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:47,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 04:11:47,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:11:47,224 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:47,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 04:11:47,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:47,244 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:47,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 04:11:47,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:11:47,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:47,405 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:11:47,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 04:11:47,409 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:11:47,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:11:47,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:11:47,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:11:47,409 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:11:47,409 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,409 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:11:47,409 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:11:47,409 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2023-11-29 04:11:47,409 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:11:47,409 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:11:47,411 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 04:11:47,418 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 04:11:47,421 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 04:11:47,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:11:47,463 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:11:47,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:47,464 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:47,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 04:11:47,468 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 04:11:47,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:11:47,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:11:47,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:11:47,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:11:47,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:11:47,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:11:47,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:11:47,485 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:11:47,489 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-29 04:11:47,490 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 04:11:47,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:47,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:47,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 04:11:47,494 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:11:47,494 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:11:47,494 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:11:47,495 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-29 04:11:47,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 04:11:47,499 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:11:47,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:47,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:11:47,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:47,535 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:11:47,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:47,564 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 04:11:47,565 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 04:11:47,565 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 04:11:47,585 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 13 states and 18 transitions. Complement of second has 5 states. [2023-11-29 04:11:47,585 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 04:11:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 04:11:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-29 04:11:47,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-29 04:11:47,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:47,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-29 04:11:47,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:47,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-29 04:11:47,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:47,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-11-29 04:11:47,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:47,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2023-11-29 04:11:47,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-29 04:11:47,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-29 04:11:47,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-11-29 04:11:47,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:11:47,589 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-29 04:11:47,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-11-29 04:11:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-29 04:11:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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 04:11:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-29 04:11:47,591 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-29 04:11:47,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:11:47,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:11:47,594 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 04:11:47,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:47,611 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2023-11-29 04:11:47,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2023-11-29 04:11:47,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:47,612 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 13 transitions. [2023-11-29 04:11:47,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-29 04:11:47,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-29 04:11:47,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2023-11-29 04:11:47,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:11:47,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-11-29 04:11:47,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2023-11-29 04:11:47,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2023-11-29 04:11:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 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 04:11:47,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-29 04:11:47,613 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-29 04:11:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:11:47,614 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-29 04:11:47,614 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 04:11:47,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-11-29 04:11:47,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:47,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:11:47,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:11:47,615 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 04:11:47,615 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:11:47,615 INFO L748 eck$LassoCheckResult]: Stem: 173#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 174#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 171#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 172#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 168#L19 [2023-11-29 04:11:47,616 INFO L750 eck$LassoCheckResult]: Loop: 168#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 167#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 168#L19 [2023-11-29 04:11:47,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:47,616 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2023-11-29 04:11:47,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:47,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149402941] [2023-11-29 04:11:47,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:47,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:47,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:47,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:47,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2023-11-29 04:11:47,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:47,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061304876] [2023-11-29 04:11:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:47,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:47,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:47,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:47,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:47,634 INFO L85 PathProgramCache]: Analyzing trace with hash 889513735, now seen corresponding path program 2 times [2023-11-29 04:11:47,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899830825] [2023-11-29 04:11:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:47,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:47,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:47,668 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:11:47,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:11:47,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:11:47,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:11:47,668 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:11:47,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:11:47,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:11:47,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2023-11-29 04:11:47,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:11:47,669 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:11:47,670 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 04:11:47,676 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 04:11:47,679 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 04:11:47,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:11:47,710 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:11:47,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:47,713 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:47,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 04:11:47,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:11:47,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:47,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 04:11:47,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:47,740 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:47,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 04:11:47,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:11:47,749 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:48,093 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:11:48,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 04:11:48,097 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:11:48,097 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:11:48,097 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:11:48,097 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:11:48,097 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:11:48,098 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:11:48,098 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:11:48,098 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2023-11-29 04:11:48,098 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:11:48,098 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:11:48,099 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 04:11:48,105 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 04:11:48,108 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 04:11:48,138 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:11:48,139 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:11:48,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:48,140 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:48,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 04:11:48,143 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 04:11:48,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:11:48,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:11:48,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:11:48,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:11:48,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:11:48,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:11:48,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:11:48,158 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:11:48,164 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:11:48,164 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 04:11:48,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:48,167 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:48,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 04:11:48,180 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:11:48,180 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:11:48,180 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:11:48,180 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-29 04:11:48,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-29 04:11:48,185 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:11:48,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:48,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:11:48,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:48,212 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:11:48,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:48,241 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 04:11:48,242 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 04:11:48,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 04:11:48,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Result 13 states and 15 transitions. Complement of second has 5 states. [2023-11-29 04:11:48,252 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 04:11:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 04:11:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-29 04:11:48,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 04:11:48,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:48,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-29 04:11:48,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:48,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-29 04:11:48,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:48,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2023-11-29 04:11:48,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:48,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 10 transitions. [2023-11-29 04:11:48,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 04:11:48,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 04:11:48,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2023-11-29 04:11:48,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:11:48,256 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-29 04:11:48,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2023-11-29 04:11:48,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-29 04:11:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 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 04:11:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2023-11-29 04:11:48,257 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-11-29 04:11:48,257 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2023-11-29 04:11:48,257 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 04:11:48,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2023-11-29 04:11:48,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:11:48,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:11:48,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:11:48,258 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-11-29 04:11:48,258 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:11:48,258 INFO L748 eck$LassoCheckResult]: Stem: 231#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 232#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_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 230#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 226#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 227#L19 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 228#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 229#L19 [2023-11-29 04:11:48,258 INFO L750 eck$LassoCheckResult]: Loop: 229#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 233#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 229#L19 [2023-11-29 04:11:48,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:48,259 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2023-11-29 04:11:48,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:48,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498982259] [2023-11-29 04:11:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:48,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:48,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:48,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:48,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:48,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2023-11-29 04:11:48,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:48,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589085732] [2023-11-29 04:11:48,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:48,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:48,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:11:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:11:48,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:11:48,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 2 times [2023-11-29 04:11:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:11:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432880607] [2023-11-29 04:11:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:11:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:11:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:48,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:11:48,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:11:48,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432880607] [2023-11-29 04:11:48,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432880607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:11:48,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:11:48,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:11:48,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137251103] [2023-11-29 04:11:48,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:11:48,367 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:11:48,367 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:11:48,367 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:11:48,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:11:48,368 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:11:48,368 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,368 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:11:48,368 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:11:48,368 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2023-11-29 04:11:48,368 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:11:48,368 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:11:48,369 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 04:11:48,373 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 04:11:48,379 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 04:11:48,410 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:11:48,410 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:11:48,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:48,412 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:48,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 04:11:48,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:11:48,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:48,434 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:11:48,434 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:11:48,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-29 04:11:48,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:48,439 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:48,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 04:11:48,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:11:48,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:48,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-29 04:11:48,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 04:11:48,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 04:11:48,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:48,475 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:48,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 04:11:48,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:11:48,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:11:48,800 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:11:48,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 04:11:48,804 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:11:48,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:11:48,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:11:48,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:11:48,804 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:11:48,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,804 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:11:48,804 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:11:48,804 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2023-11-29 04:11:48,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:11:48,805 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:11:48,806 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 04:11:48,811 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 04:11:48,814 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 04:11:48,844 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:11:48,844 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:11:48,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:48,846 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:48,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 04:11:48,848 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 04:11:48,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:11:48,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:11:48,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:11:48,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:11:48,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:11:48,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:11:48,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:11:48,862 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:11:48,866 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-29 04:11:48,866 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 04:11:48,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:11:48,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:11:48,867 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:11:48,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 04:11:48,875 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:11:48,875 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:11:48,875 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:11:48,876 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 04:11:48,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-29 04:11:48,881 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:11:48,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:48,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:11:48,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:48,912 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:11:48,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:48,930 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 04:11:48,930 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 04:11:48,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:11:48,935 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 10 transitions. Complement of second has 3 states. [2023-11-29 04:11:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-29 04:11:48,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:11:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2023-11-29 04:11:48,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-29 04:11:48,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:48,937 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 04:11:48,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:48,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:11:48,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:48,965 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:11:48,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:48,984 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 04:11:48,985 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 04:11:48,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:11:48,989 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 10 transitions. Complement of second has 3 states. [2023-11-29 04:11:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-29 04:11:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:11:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2023-11-29 04:11:48,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-29 04:11:48,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:48,992 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 04:11:49,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:11:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:49,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:11:49,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:11:49,021 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:11:49,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:11:49,037 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 04:11:49,038 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 2 loop predicates [2023-11-29 04:11:49,038 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:11:49,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 11 transitions. Complement of second has 4 states. [2023-11-29 04:11:49,048 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 04:11:49,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:11:49,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-11-29 04:11:49,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-29 04:11:49,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:49,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-29 04:11:49,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:49,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-29 04:11:49,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:11:49,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-11-29 04:11:49,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 04:11:49,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2023-11-29 04:11:49,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 04:11:49,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 04:11:49,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 04:11:49,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:11:49,051 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:11:49,051 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:11:49,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:11:49,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:11:49,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:11:49,052 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:11:49,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:11:49,052 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-29 04:11:49,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-29 04:11:49,052 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 04:11:49,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:11:49,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 04:11:49,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 04:11:49,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 04:11:49,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:11:49,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:11:49,053 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:11:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:11:49,053 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:11:49,053 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 04:11:49,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:11:49,054 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 04:11:49,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 04:11:49,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 04:11:49 BoogieIcfgContainer [2023-11-29 04:11:49,061 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 04:11:49,061 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:11:49,061 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:11:49,062 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:11:49,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:11:45" (3/4) ... [2023-11-29 04:11:49,063 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:11:49,064 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:11:49,065 INFO L158 Benchmark]: Toolchain (without parser) took 3604.89ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 117.1MB in the beginning and 128.5MB in the end (delta: -11.3MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2023-11-29 04:11:49,065 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:11:49,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.10ms. Allocated memory is still 151.0MB. Free memory was 116.6MB in the beginning and 107.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 04:11:49,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.82ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 106.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:11:49,066 INFO L158 Benchmark]: Boogie Preprocessor took 21.18ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 104.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:11:49,067 INFO L158 Benchmark]: RCFGBuilder took 198.54ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 96.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 04:11:49,067 INFO L158 Benchmark]: BuchiAutomizer took 3197.12ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 96.3MB in the beginning and 128.5MB in the end (delta: -32.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-11-29 04:11:49,068 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 184.5MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:11:49,070 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.10ms. Allocated memory is still 151.0MB. Free memory was 116.6MB in the beginning and 107.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.82ms. Allocated memory is still 151.0MB. Free memory was 107.3MB in the beginning and 106.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.18ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 104.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 198.54ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 96.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3197.12ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 96.3MB in the beginning and 128.5MB in the end (delta: -32.2MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 184.5MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (y + (-1 * x)) and consists of 5 locations. One deterministic module has affine ranking function (y + (-1 * x)) and consists of 3 locations. One deterministic module has affine ranking function ((-1 * y) + x) and consists of 3 locations. One nondeterministic module has affine ranking function ((-1 * y) + x) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 37 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s 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 04:11:49,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-29 04:11:49,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a199a229-f9ab-425b-a8bd-5e8a44acaa39/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE