./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.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_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/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_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/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_2a531683-49ef-4a2f-ba3d-01531546276c/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 f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:50:21,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:50:21,263 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 04:50:21,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:50:21,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:50:21,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:50:21,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:50:21,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:50:21,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:50:21,296 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:50:21,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:50:21,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:50:21,298 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:50:21,299 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 04:50:21,299 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 04:50:21,300 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 04:50:21,300 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 04:50:21,301 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 04:50:21,301 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 04:50:21,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:50:21,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 04:50:21,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:50:21,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:50:21,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 04:50:21,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 04:50:21,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 04:50:21,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:50:21,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:50:21,309 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 04:50:21,309 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:50:21,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:50:21,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:50:21,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:50:21,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:50:21,311 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 04:50:21,311 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_2a531683-49ef-4a2f-ba3d-01531546276c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 [2023-11-29 04:50:21,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:50:21,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:50:21,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:50:21,550 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:50:21,551 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:50:21,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-11-29 04:50:24,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:50:24,476 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:50:24,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-11-29 04:50:24,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/data/0cda4df9c/4dc8e1de8f414b1d9d427fcb93f1e265/FLAG8a9a54766 [2023-11-29 04:50:24,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/data/0cda4df9c/4dc8e1de8f414b1d9d427fcb93f1e265 [2023-11-29 04:50:24,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:50:24,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:50:24,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:50:24,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:50:24,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:50:24,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6febffe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24, skipping insertion in model container [2023-11-29 04:50:24,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,523 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:50:24,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:50:24,648 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:50:24,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:50:24,675 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:50:24,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24 WrapperNode [2023-11-29 04:50:24,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:50:24,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:50:24,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:50:24,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:50:24,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,704 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-11-29 04:50:24,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:50:24,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:50:24,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:50:24,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:50:24,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,717 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,722 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 04:50:24,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:50:24,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:50:24,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:50:24,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:50:24,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (1/1) ... [2023-11-29 04:50:24,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:24,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:24,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 04:50:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:50:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:50:24,864 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:50:24,865 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:50:24,908 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:50:24,916 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:50:24,916 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 04:50:24,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:50:24 BoogieIcfgContainer [2023-11-29 04:50:24,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:50:24,918 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 04:50:24,918 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 04:50:24,921 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 04:50:24,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:50:24,922 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 04:50:24" (1/3) ... [2023-11-29 04:50:24,922 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@625e927f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 04:50:24, skipping insertion in model container [2023-11-29 04:50:24,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:50:24,923 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:50:24" (2/3) ... [2023-11-29 04:50:24,923 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@625e927f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 04:50:24, skipping insertion in model container [2023-11-29 04:50:24,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:50:24,923 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:50:24" (3/3) ... [2023-11-29 04:50:24,925 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2023-11-29 04:50:24,970 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 04:50:24,971 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 04:50:24,971 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 04:50:24,971 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 04:50:24,971 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 04:50:24,971 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 04:50:24,971 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 04:50:24,972 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 04:50:24,975 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 04:50:24,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 04:50:24,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:50:24,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:50:24,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 04:50:24,994 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 04:50:24,994 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 04:50:24,994 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 04:50:24,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 04:50:24,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:50:24,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:50:24,996 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 04:50:24,996 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 04:50:25,001 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17-2true [2023-11-29 04:50:25,002 INFO L750 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 2#L19-2true assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 9#L19-3true main_~i~0#1 := 1 + main_~i~0#1; 4#L17-2true [2023-11-29 04:50:25,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:25,006 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 04:50:25,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:25,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366342519] [2023-11-29 04:50:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:25,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:25,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:25,093 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-11-29 04:50:25,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:25,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134281507] [2023-11-29 04:50:25,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:25,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:25,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:25,110 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2023-11-29 04:50:25,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:25,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239097300] [2023-11-29 04:50:25,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:25,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:25,203 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:25,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:25,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:25,204 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:25,204 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:50:25,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:25,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:25,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2023-11-29 04:50:25,204 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:25,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:25,223 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 04:50:25,235 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 04:50:25,239 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 04:50:25,243 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 04:50:25,310 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:25,310 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:50:25,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 04:50:25,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:25,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:25,342 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:50:25,342 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 04:50:25,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:25,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 04:50:25,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:25,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:25,374 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:50:25,374 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 04:50:25,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 04:50:25,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 04:50:25,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:25,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:25,396 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:50:25,396 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:50:25,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 04:50:25,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 04:50:25,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:25,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:25,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:25,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 04:50:25,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:50:25,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:25,447 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:50:25,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 04:50:25,452 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:25,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:25,452 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:25,452 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:25,452 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:50:25,452 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:25,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:25,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration1_Loop [2023-11-29 04:50:25,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:25,453 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:25,455 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 04:50:25,469 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 04:50:25,473 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 04:50:25,477 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 04:50:25,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:25,535 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:50:25,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,538 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 04:50:25,543 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 04:50:25,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:25,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:25,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:25,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:25,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:50:25,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:50:25,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:50:25,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 04:50:25,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,576 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 04:50:25,578 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 04:50:25,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:25,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:25,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:25,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:25,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:50:25,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:50:25,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:50:25,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 04:50:25,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,615 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 04:50:25,618 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 04:50:25,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:25,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:50:25,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:25,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:25,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:25,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:50:25,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:50:25,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:50:25,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 04:50:25,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,636 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 04:50:25,638 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 04:50:25,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:25,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:50:25,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:25,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:25,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:25,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:50:25,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:50:25,652 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:50:25,655 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:50:25,655 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:50:25,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:25,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:25,674 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:25,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 04:50:25,676 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:50:25,676 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:50:25,676 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:50:25,676 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2023-11-29 04:50:25,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 04:50:25,684 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:50:25,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:25,713 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:50:25,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:25,731 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:50:25,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:25,787 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 04:50:25,821 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-29 04:50:25,823 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 04:50:25,906 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 29 states and 47 transitions. Complement of second has 10 states. [2023-11-29 04:50:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-29 04:50:25,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 04:50:25,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 27 transitions. [2023-11-29 04:50:25,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-29 04:50:25,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:25,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-29 04:50:25,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:25,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-29 04:50:25,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:25,916 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 47 transitions. [2023-11-29 04:50:25,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 04:50:25,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 14 states and 19 transitions. [2023-11-29 04:50:25,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-29 04:50:25,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-29 04:50:25,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-11-29 04:50:25,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:50:25,924 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-29 04:50:25,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-11-29 04:50:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-29 04:50:25,944 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 04:50:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-29 04:50:25,945 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-29 04:50:25,945 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-29 04:50:25,945 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 04:50:25,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-11-29 04:50:25,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 04:50:25,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:50:25,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:50:25,947 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 04:50:25,947 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-29 04:50:25,947 INFO L748 eck$LassoCheckResult]: Stem: 92#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 93#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_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 94#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 85#L19-2 [2023-11-29 04:50:25,947 INFO L750 eck$LassoCheckResult]: Loop: 85#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 86#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 95#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 90#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 85#L19-2 [2023-11-29 04:50:25,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:25,948 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-29 04:50:25,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:25,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746984711] [2023-11-29 04:50:25,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:25,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:25,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:25,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1537394, now seen corresponding path program 1 times [2023-11-29 04:50:25,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:25,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060282620] [2023-11-29 04:50:25,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:25,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:25,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:25,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:25,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 1 times [2023-11-29 04:50:25,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:25,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628748273] [2023-11-29 04:50:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:25,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:50:26,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:50:26,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628748273] [2023-11-29 04:50:26,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628748273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:50:26,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807953104] [2023-11-29 04:50:26,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:26,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:50:26,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:26,052 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:50:26,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:50:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:26,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:50:26,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:50:26,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:50:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:50:26,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807953104] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:50:26,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:50:26,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-29 04:50:26,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312440061] [2023-11-29 04:50:26,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:50:26,198 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:26,198 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:26,199 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:26,199 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:26,199 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:50:26,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:26,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:26,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:26,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2023-11-29 04:50:26,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:26,199 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:26,201 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 04:50:26,204 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 04:50:26,210 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 04:50:26,213 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 04:50:26,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:26,272 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:50:26,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:26,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:26,277 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:26,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 04:50:26,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:26,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:26,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:50:26,305 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 04:50:26,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 04:50:26,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:26,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:26,310 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:26,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 04:50:26,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:26,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:26,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 04:50:26,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:26,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:26,338 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:26,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 04:50:26,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:50:26,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:26,358 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:50:26,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 04:50:26,361 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:26,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:26,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:26,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:26,362 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:50:26,362 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:26,362 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:26,362 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:26,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration2_Loop [2023-11-29 04:50:26,363 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:26,363 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:26,364 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 04:50:26,368 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 04:50:26,374 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 04:50:26,378 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 04:50:26,445 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:26,445 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:50:26,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:26,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:26,446 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:26,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 04:50:26,450 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 04:50:26,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:26,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:26,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:26,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:26,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:50:26,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:50:26,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:50:26,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 04:50:26,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:26,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:26,476 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:26,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 04:50:26,479 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 04:50:26,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:26,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:50:26,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:26,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:26,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:26,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:50:26,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:50:26,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:50:26,501 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:50:26,501 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 04:50:26,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:26,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:26,505 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:26,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 04:50:26,509 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:50:26,510 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:50:26,510 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:50:26,510 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-29 04:50:26,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 04:50:26,514 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:50:26,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:26,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:50:26,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:26,544 WARN L260 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:50:26,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:50:26,579 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-29 04:50:26,579 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 04:50:26,624 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 32 states and 42 transitions. Complement of second has 9 states. [2023-11-29 04:50:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-29 04:50:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 04:50:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-11-29 04:50:26,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-29 04:50:26,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:26,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-29 04:50:26,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:26,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-29 04:50:26,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:26,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2023-11-29 04:50:26,628 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 04:50:26,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 36 transitions. [2023-11-29 04:50:26,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-29 04:50:26,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-29 04:50:26,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 36 transitions. [2023-11-29 04:50:26,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:50:26,630 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 36 transitions. [2023-11-29 04:50:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 36 transitions. [2023-11-29 04:50:26,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2023-11-29 04:50:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 22 states have internal predecessors, (32), 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 04:50:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2023-11-29 04:50:26,633 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2023-11-29 04:50:26,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:50:26,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:50:26,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:50:26,637 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:50:26,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:50:26,670 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2023-11-29 04:50:26,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2023-11-29 04:50:26,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-29 04:50:26,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 23 states and 29 transitions. [2023-11-29 04:50:26,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-29 04:50:26,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-29 04:50:26,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2023-11-29 04:50:26,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:50:26,672 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-11-29 04:50:26,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2023-11-29 04:50:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2023-11-29 04:50:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 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 04:50:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2023-11-29 04:50:26,675 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2023-11-29 04:50:26,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:50:26,676 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2023-11-29 04:50:26,676 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 04:50:26,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2023-11-29 04:50:26,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-29 04:50:26,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:50:26,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:50:26,678 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 04:50:26,678 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2023-11-29 04:50:26,678 INFO L748 eck$LassoCheckResult]: Stem: 276#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 277#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 278#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 269#L19-2 [2023-11-29 04:50:26,678 INFO L750 eck$LassoCheckResult]: Loop: 269#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 270#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 284#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 283#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 282#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 279#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 273#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 269#L19-2 [2023-11-29 04:50:26,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:26,679 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2023-11-29 04:50:26,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:26,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288541240] [2023-11-29 04:50:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:26,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:26,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:26,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:26,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:26,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1390285212, now seen corresponding path program 2 times [2023-11-29 04:50:26,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:26,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446442240] [2023-11-29 04:50:26,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:26,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:26,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:26,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:26,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:26,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2036023261, now seen corresponding path program 2 times [2023-11-29 04:50:26,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:26,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177518608] [2023-11-29 04:50:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:26,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:50:26,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:50:26,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177518608] [2023-11-29 04:50:26,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177518608] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:50:26,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835383322] [2023-11-29 04:50:26,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:50:26,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:50:26,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:26,816 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:50:26,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 04:50:26,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:50:26,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:50:26,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:50:26,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:26,889 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:50:26,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:50:26,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:26,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 04:50:27,037 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:50:27,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835383322] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:50:27,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:50:27,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-11-29 04:50:27,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795211828] [2023-11-29 04:50:27,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:50:27,111 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:27,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:27,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:27,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:27,111 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:50:27,111 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,111 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:27,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:27,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2023-11-29 04:50:27,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:27,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:27,113 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 04:50:27,121 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 04:50:27,124 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 04:50:27,129 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 04:50:27,187 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:27,187 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:50:27,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,189 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:27,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:27,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 04:50:27,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 04:50:27,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,214 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 04:50:27,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:50:27,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:27,242 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:50:27,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 04:50:27,245 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:27,245 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:27,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:27,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:27,246 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:50:27,246 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,246 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:27,246 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:27,246 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration3_Loop [2023-11-29 04:50:27,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:27,246 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:27,247 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 04:50:27,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:50:27,261 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 04:50:27,264 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 04:50:27,315 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:27,315 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:50:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,317 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 04:50:27,326 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 04:50:27,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:27,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:50:27,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:27,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:27,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:27,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:50:27,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:50:27,339 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:50:27,341 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:50:27,342 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:50:27,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,343 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 04:50:27,346 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:50:27,346 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:50:27,346 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:50:27,346 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2023-11-29 04:50:27,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-29 04:50:27,350 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:50:27,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:27,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:50:27,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:27,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:50:27,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 04:50:27,403 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 04:50:27,404 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 04:50:27,424 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 34 states and 42 transitions. Complement of second has 6 states. [2023-11-29 04:50:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-29 04:50:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 04:50:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-29 04:50:27,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 7 letters. [2023-11-29 04:50:27,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:27,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 10 letters. Loop has 7 letters. [2023-11-29 04:50:27,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:27,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 14 letters. [2023-11-29 04:50:27,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:27,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2023-11-29 04:50:27,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 04:50:27,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2023-11-29 04:50:27,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-29 04:50:27,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-29 04:50:27,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2023-11-29 04:50:27,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:50:27,430 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2023-11-29 04:50:27,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2023-11-29 04:50:27,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2023-11-29 04:50:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 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 04:50:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2023-11-29 04:50:27,434 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2023-11-29 04:50:27,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:50:27,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:50:27,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:50:27,435 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 04:50:27,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:50:27,472 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2023-11-29 04:50:27,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 49 transitions. [2023-11-29 04:50:27,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 04:50:27,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 49 transitions. [2023-11-29 04:50:27,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-29 04:50:27,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-29 04:50:27,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 49 transitions. [2023-11-29 04:50:27,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:50:27,475 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 49 transitions. [2023-11-29 04:50:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 49 transitions. [2023-11-29 04:50:27,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2023-11-29 04:50:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 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 04:50:27,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-11-29 04:50:27,479 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-11-29 04:50:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:50:27,480 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-11-29 04:50:27,480 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 04:50:27,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2023-11-29 04:50:27,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 04:50:27,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:50:27,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:50:27,482 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 04:50:27,482 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 04:50:27,482 INFO L748 eck$LassoCheckResult]: Stem: 510#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 511#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_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 506#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 508#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 503#L19-2 [2023-11-29 04:50:27,482 INFO L750 eck$LassoCheckResult]: Loop: 503#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 503#L19-2 [2023-11-29 04:50:27,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:27,483 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-11-29 04:50:27,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:27,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835782939] [2023-11-29 04:50:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:27,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:27,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:27,492 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-11-29 04:50:27,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:27,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143047355] [2023-11-29 04:50:27,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:27,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:27,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:27,499 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2023-11-29 04:50:27,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:27,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248751568] [2023-11-29 04:50:27,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:27,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:27,526 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:27,526 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:27,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:27,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:27,526 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:50:27,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:27,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:27,526 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2023-11-29 04:50:27,526 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:27,527 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:27,527 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 04:50:27,530 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 04:50:27,533 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 04:50:27,536 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 04:50:27,571 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:27,571 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:50:27,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,573 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-29 04:50:27,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:27,587 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:27,605 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:50:27,605 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 04:50:27,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-29 04:50:27,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,610 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-29 04:50:27,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:27,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:27,630 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:50:27,630 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=3} Honda state: {ULTIMATE.start_main_~i~0#1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:50:27,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-29 04:50:27,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,634 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-29 04:50:27,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:27,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:27,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:50:27,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:50:27,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:27,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,660 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-29 04:50:27,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:27,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:27,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:27,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,682 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-29 04:50:27,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:50:27,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:27,707 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:50:27,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:27,712 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:27,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:27,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:27,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:27,712 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:50:27,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:27,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:27,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration4_Loop [2023-11-29 04:50:27,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:27,713 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:27,714 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 04:50:27,717 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 04:50:27,720 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 04:50:27,722 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 04:50:27,763 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:27,764 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:50:27,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,765 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-29 04:50:27,769 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 04:50:27,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:27,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:50:27,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:27,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:27,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:27,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:50:27,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:50:27,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:50:27,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-29 04:50:27,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,789 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-29 04:50:27,792 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 04:50:27,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:27,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:27,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:27,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:27,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:50:27,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:50:27,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:50:27,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:27,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,812 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-29 04:50:27,815 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 04:50:27,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:27,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:27,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:27,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:27,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:50:27,827 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:50:27,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:50:27,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-29 04:50:27,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,834 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-29 04:50:27,836 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 04:50:27,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:27,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:50:27,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:27,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:27,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:27,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:50:27,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:50:27,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:50:27,853 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:50:27,853 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:50:27,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:27,857 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:27,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-29 04:50:27,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:50:27,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:50:27,858 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:50:27,858 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2023-11-29 04:50:27,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-29 04:50:27,863 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:50:27,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:27,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:50:27,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:27,890 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:50:27,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:27,890 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 04:50:27,891 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:50:27,891 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 10 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 04:50:27,904 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 10. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 67 states and 79 transitions. Complement of second has 5 states. [2023-11-29 04:50:27,905 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 04:50:27,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 04:50:27,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-29 04:50:27,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-29 04:50:27,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:27,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2023-11-29 04:50:27,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:27,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 04:50:27,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:27,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 79 transitions. [2023-11-29 04:50:27,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 04:50:27,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 61 states and 72 transitions. [2023-11-29 04:50:27,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 04:50:27,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 04:50:27,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 72 transitions. [2023-11-29 04:50:27,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:50:27,910 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 72 transitions. [2023-11-29 04:50:27,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 72 transitions. [2023-11-29 04:50:27,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 37. [2023-11-29 04:50:27,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 36 states have internal predecessors, (46), 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 04:50:27,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2023-11-29 04:50:27,914 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-11-29 04:50:27,915 INFO L428 stractBuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-11-29 04:50:27,915 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 04:50:27,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 46 transitions. [2023-11-29 04:50:27,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 04:50:27,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:50:27,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:50:27,916 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [11, 2, 1, 1, 1, 1] [2023-11-29 04:50:27,916 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 04:50:27,917 INFO L748 eck$LassoCheckResult]: Stem: 644#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 645#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 640#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 637#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 638#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 639#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 672#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 670#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 668#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 666#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 664#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 662#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 660#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 658#L19-2 assume !(main_~i~0#1 > 2 && main_~j~0#1 <= 9); 646#L19-3 main_~i~0#1 := 1 + main_~i~0#1; 647#L17-2 assume !!(main_~i~0#1 < 5);main_~j~0#1 := 0; 648#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 649#L19-2 [2023-11-29 04:50:27,917 INFO L750 eck$LassoCheckResult]: Loop: 649#L19-2 assume !!(main_~i~0#1 > 2 && main_~j~0#1 <= 9);main_~j~0#1 := 1 + main_~j~0#1; 649#L19-2 [2023-11-29 04:50:27,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash -178305705, now seen corresponding path program 3 times [2023-11-29 04:50:27,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:27,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755532009] [2023-11-29 04:50:27,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:27,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:27,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:27,941 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-11-29 04:50:27,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:27,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41994109] [2023-11-29 04:50:27,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:27,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:27,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:27,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1232509539, now seen corresponding path program 4 times [2023-11-29 04:50:27,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:50:27,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512510538] [2023-11-29 04:50:27,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:50:27,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:50:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:50:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:50:27,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:50:27,985 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:27,985 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:27,985 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:27,985 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:27,985 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:50:27,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:27,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:27,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:27,986 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration5_Loop [2023-11-29 04:50:27,986 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:27,986 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:27,986 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 04:50:27,992 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 04:50:27,994 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 04:50:27,997 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 04:50:28,030 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:28,030 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:50:28,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:28,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:28,031 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:28,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-29 04:50:28,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:50:28,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:28,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-29 04:50:28,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:28,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:28,049 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:28,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-29 04:50:28,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:50:28,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:50:28,072 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:50:28,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-29 04:50:28,075 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:50:28,075 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:50:28,075 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:50:28,075 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:50:28,075 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:50:28,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:28,075 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:50:28,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:50:28,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2.c_Iteration5_Loop [2023-11-29 04:50:28,076 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:50:28,076 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:50:28,076 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 04:50:28,081 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 04:50:28,083 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 04:50:28,085 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 04:50:28,110 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:50:28,111 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:50:28,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:28,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:28,112 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:28,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-29 04:50:28,114 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 04:50:28,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:50:28,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:50:28,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:50:28,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:50:28,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:50:28,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:50:28,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:50:28,127 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:50:28,129 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:50:28,129 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:50:28,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:50:28,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:50:28,130 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:50:28,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-29 04:50:28,132 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:50:28,132 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:50:28,132 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:50:28,132 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 19 Supporting invariants [] [2023-11-29 04:50:28,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:28,135 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:50:28,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:28,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:50:28,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:28,184 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:50:28,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:28,184 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 04:50:28,185 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:50:28,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 04:50:28,195 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 65 states and 76 transitions. Complement of second has 5 states. [2023-11-29 04:50:28,195 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 04:50:28,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 04:50:28,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-29 04:50:28,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 1 letters. [2023-11-29 04:50:28,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:28,197 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 04:50:28,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:28,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:50:28,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:28,247 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:50:28,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:28,247 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 04:50:28,248 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:50:28,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 04:50:28,256 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 65 states and 76 transitions. Complement of second has 5 states. [2023-11-29 04:50:28,257 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 04:50:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 04:50:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-29 04:50:28,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 1 letters. [2023-11-29 04:50:28,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:28,258 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 04:50:28,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:50:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:28,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:50:28,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:50:28,304 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:50:28,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:50:28,304 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 04:50:28,305 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:50:28,305 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 04:50:28,314 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 42 states and 51 transitions. Complement of second has 4 states. [2023-11-29 04:50:28,314 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 04:50:28,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 04:50:28,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-11-29 04:50:28,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 17 letters. Loop has 1 letters. [2023-11-29 04:50:28,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:28,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 18 letters. Loop has 1 letters. [2023-11-29 04:50:28,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:28,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 17 letters. Loop has 2 letters. [2023-11-29 04:50:28,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:50:28,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2023-11-29 04:50:28,318 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 04:50:28,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2023-11-29 04:50:28,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 04:50:28,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 04:50:28,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 04:50:28,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:50:28,319 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:50:28,319 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:50:28,320 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:50:28,320 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 04:50:28,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:50:28,320 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 04:50:28,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 04:50:28,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 04:50:28 BoogieIcfgContainer [2023-11-29 04:50:28,327 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 04:50:28,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:50:28,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:50:28,328 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:50:28,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:50:24" (3/4) ... [2023-11-29 04:50:28,330 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:50:28,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:50:28,332 INFO L158 Benchmark]: Toolchain (without parser) took 3835.23ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 128.4MB in the beginning and 90.5MB in the end (delta: 37.9MB). Peak memory consumption was 93.2MB. Max. memory is 16.1GB. [2023-11-29 04:50:28,332 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 163.6MB. Free memory was 108.1MB in the beginning and 108.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:50:28,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.05ms. Allocated memory is still 163.6MB. Free memory was 128.4MB in the beginning and 119.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 04:50:28,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.65ms. Allocated memory is still 163.6MB. Free memory was 119.1MB in the beginning and 117.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:50:28,333 INFO L158 Benchmark]: Boogie Preprocessor took 24.57ms. Allocated memory is still 163.6MB. Free memory was 117.8MB in the beginning and 116.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:50:28,333 INFO L158 Benchmark]: RCFGBuilder took 186.81ms. Allocated memory is still 163.6MB. Free memory was 116.2MB in the beginning and 108.2MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 04:50:28,334 INFO L158 Benchmark]: BuchiAutomizer took 3409.16ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 107.8MB in the beginning and 90.5MB in the end (delta: 17.3MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2023-11-29 04:50:28,334 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 220.2MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:50:28,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 163.6MB. Free memory was 108.1MB in the beginning and 108.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.05ms. Allocated memory is still 163.6MB. Free memory was 128.4MB in the beginning and 119.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.65ms. Allocated memory is still 163.6MB. Free memory was 119.1MB in the beginning and 117.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.57ms. Allocated memory is still 163.6MB. Free memory was 117.8MB in the beginning and 116.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 186.81ms. Allocated memory is still 163.6MB. Free memory was 116.2MB in the beginning and 108.2MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3409.16ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 107.8MB in the beginning and 90.5MB in the end (delta: 17.3MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 220.2MB. Free memory is still 90.5MB. 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 7 terminating modules (2 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-2 * i) + 5) and consists of 6 locations. One deterministic module has affine ranking function j and consists of 5 locations. One deterministic module has affine ranking function ((-2 * i) + 7) and consists of 4 locations. One deterministic module has affine ranking function ((-2 * j) + 19) and consists of 3 locations. One nondeterministic module has affine ranking function ((-2 * j) + 19) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 6 iterations. TraceHistogramMax:11. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 44 StatesRemovedByMinimization, 6 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 [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/11 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 54 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax180 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp91 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 04:50:28,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-29 04:50:28,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:28,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-29 04:50:28,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 04:50:29,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 04:50:29,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a531683-49ef-4a2f-ba3d-01531546276c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE