./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 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_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl --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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:07:35,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:07:36,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-12 02:07:36,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:07:36,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:07:36,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:07:36,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:07:36,100 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:07:36,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:07:36,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:07:36,106 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:07:36,107 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:07:36,107 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:07:36,109 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:07:36,110 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:07:36,110 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:07:36,110 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:07:36,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:07:36,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:07:36,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:07:36,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:07:36,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:07:36,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:07:36,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:07:36,115 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:07:36,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:07:36,115 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:07:36,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:07:36,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:07:36,117 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:07:36,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:07:36,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:07:36,119 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:07:36,119 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_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2023-11-12 02:07:36,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:07:36,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:07:36,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:07:36,503 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:07:36,504 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:07:36,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-11-12 02:07:39,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:07:39,858 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:07:39,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-11-12 02:07:39,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/data/8cdc18f1d/f2307718c66a4f3dafc44f8d2bfdabfb/FLAG9764cdd47 [2023-11-12 02:07:39,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/data/8cdc18f1d/f2307718c66a4f3dafc44f8d2bfdabfb [2023-11-12 02:07:39,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:07:39,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:07:39,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:39,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:07:39,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:07:39,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:39" (1/1) ... [2023-11-12 02:07:39,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acbd2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:39, skipping insertion in model container [2023-11-12 02:07:39,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:39" (1/1) ... [2023-11-12 02:07:39,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:07:40,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:40,132 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:07:40,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:40,163 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:07:40,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40 WrapperNode [2023-11-12 02:07:40,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:40,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:40,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:07:40,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:07:40,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,196 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-12 02:07:40,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:40,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:07:40,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:07:40,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:07:40,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:07:40,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:07:40,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:07:40,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:07:40,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:40,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:40,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:40,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:07:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:07:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:07:40,405 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:07:40,407 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:07:40,559 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:07:40,564 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:07:40,574 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:07:40,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:40 BoogieIcfgContainer [2023-11-12 02:07:40,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:07:40,578 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:07:40,579 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:07:40,583 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:07:40,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:07:40,584 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:07:39" (1/3) ... [2023-11-12 02:07:40,586 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5beea7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:07:40, skipping insertion in model container [2023-11-12 02:07:40,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:07:40,586 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (2/3) ... [2023-11-12 02:07:40,589 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5beea7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:07:40, skipping insertion in model container [2023-11-12 02:07:40,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:07:40,589 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:40" (3/3) ... [2023-11-12 02:07:40,591 INFO L332 chiAutomizerObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-11-12 02:07:40,652 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:07:40,653 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:07:40,653 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:07:40,653 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:07:40,653 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:07:40,654 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:07:40,654 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:07:40,654 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:07:40,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2023-11-12 02:07:40,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:40,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:07:40,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:07:40,682 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-12 02:07:40,682 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:07:40,682 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:07:40,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2023-11-12 02:07:40,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:40,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:07:40,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:07:40,685 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-12 02:07:40,685 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:07:40,693 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 5#L21true assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 8#L22-2true [2023-11-12 02:07:40,693 INFO L750 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 3#L24-2true assume !(main_~y~0#1 < main_~z~0#1); 9#L24-3true main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 8#L22-2true [2023-11-12 02:07:40,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:40,699 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-12 02:07:40,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:40,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388004031] [2023-11-12 02:07:40,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:40,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:40,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:40,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:40,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:40,810 INFO L85 PathProgramCache]: Analyzing trace with hash 43923, now seen corresponding path program 1 times [2023-11-12 02:07:40,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:40,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295185588] [2023-11-12 02:07:40,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:40,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:40,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:40,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:40,853 INFO L85 PathProgramCache]: Analyzing trace with hash 889513810, now seen corresponding path program 1 times [2023-11-12 02:07:40,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:40,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037973399] [2023-11-12 02:07:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:40,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:40,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:40,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:41,018 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:41,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:41,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:41,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:41,020 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:07:41,020 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:41,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:41,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2023-11-12 02:07:41,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:41,020 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:41,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:41,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:41,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:41,136 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:41,137 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:07:41,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:41,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:41,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-12 02:07:41,179 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:07:41,179 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: [] [2023-11-12 02:07:41,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-12 02:07:41,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:41,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:41,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-12 02:07:41,219 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:07:41,220 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: [] [2023-11-12 02:07:41,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:41,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:41,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:41,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-12 02:07:41,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:41,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-12 02:07:41,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:07:41,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:41,510 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:07:41,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:41,514 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:41,514 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:41,514 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:41,514 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:41,515 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:07:41,515 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,515 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:41,515 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:41,515 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2023-11-12 02:07:41,515 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:41,515 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:41,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:41,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:41,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:41,610 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:41,615 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:07:41,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,618 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,628 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 [2023-11-12 02:07:41,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:41,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:41,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:41,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:41,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-12 02:07:41,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:41,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:41,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:41,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:41,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,681 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,689 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 [2023-11-12 02:07:41,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-12 02:07:41,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:41,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:41,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:41,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:41,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:41,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:41,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:41,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:41,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,729 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,743 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 [2023-11-12 02:07:41,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-12 02:07:41,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:41,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:41,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:41,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:41,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:41,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:07:41,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:41,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:41,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:41,783 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-12 02:07:41,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,785 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-12 02:07:41,800 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 [2023-11-12 02:07:41,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:41,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:41,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:41,811 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-12 02:07:41,815 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-11-12 02:07:41,816 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-11-12 02:07:41,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:41,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:41,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,844 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-12 02:07:41,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-12 02:07:41,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:41,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:41,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:41,859 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-12 02:07:41,865 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-11-12 02:07:41,865 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-11-12 02:07:41,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:41,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-12 02:07:41,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:41,900 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:41,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-12 02:07:41,908 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 [2023-11-12 02:07:41,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:41,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:41,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:41,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:41,922 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-12 02:07:41,925 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-12 02:07:41,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:41,946 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:07:41,955 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-11-12 02:07:41,956 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-12 02:07:41,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:41,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:42,009 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:42,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:07:42,012 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:07:42,012 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:07:42,012 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-12 02:07:42,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-12 02:07:42,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:42,026 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:07:42,036 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then 1 else 0) could not be translated [2023-11-12 02:07:42,039 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then ~x~0 else ~y~0) could not be translated [2023-11-12 02:07:42,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:42,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,110 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:07:42,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:42,365 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 [2023-11-12 02:07:42,367 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:42,449 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 45 transitions. Complement of second has 8 states. [2023-11-12 02:07:42,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-12 02:07:42,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-12 02:07:42,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:42,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2023-11-12 02:07:42,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 3 letters. [2023-11-12 02:07:42,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:42,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-12 02:07:42,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:42,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-12 02:07:42,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:42,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 45 transitions. [2023-11-12 02:07:42,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:42,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 11 states and 15 transitions. [2023-11-12 02:07:42,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-12 02:07:42,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-12 02:07:42,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2023-11-12 02:07:42,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:07:42,482 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-11-12 02:07:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2023-11-12 02:07:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-12 02:07:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:42,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2023-11-12 02:07:42,508 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-11-12 02:07:42,509 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-11-12 02:07:42,509 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:07:42,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2023-11-12 02:07:42,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:42,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:07:42,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:07:42,510 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-12 02:07:42,511 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-12 02:07:42,511 INFO L748 eck$LassoCheckResult]: Stem: 95#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 96#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 93#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 94#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 89#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 90#L24-2 [2023-11-12 02:07:42,511 INFO L750 eck$LassoCheckResult]: Loop: 90#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 90#L24-2 [2023-11-12 02:07:42,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:42,512 INFO L85 PathProgramCache]: Analyzing trace with hash 28693995, now seen corresponding path program 1 times [2023-11-12 02:07:42,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:42,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446895783] [2023-11-12 02:07:42,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:42,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:42,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:42,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:42,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2023-11-12 02:07:42,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:42,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367649319] [2023-11-12 02:07:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:42,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:42,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:42,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:42,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:42,550 INFO L85 PathProgramCache]: Analyzing trace with hash 889513868, now seen corresponding path program 2 times [2023-11-12 02:07:42,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:42,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416039548] [2023-11-12 02:07:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:42,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:42,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:42,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:42,595 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:42,595 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:42,595 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:42,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:42,596 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:07:42,596 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:42,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:42,596 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:42,596 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2023-11-12 02:07:42,596 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:42,596 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:42,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:42,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:42,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:42,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:42,663 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:42,663 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:07:42,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:42,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:42,664 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:42,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:42,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:42,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-12 02:07:42,699 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:07:42,699 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: [] [2023-11-12 02:07:42,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:42,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:42,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:42,710 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:42,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-12 02:07:42,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:42,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:42,742 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:07:42,742 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:07:42,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:42,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:42,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:42,748 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:42,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:42,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:42,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-12 02:07:42,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:42,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:42,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:42,794 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:42,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:07:42,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:42,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-12 02:07:42,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:07:42,860 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=7}, {ULTIMATE.start_main_~x~0#1=-7}] Lambdas: [1, 2, 1] Nus: [0, 1] [2023-11-12 02:07:42,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:42,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:42,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:42,871 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:42,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:42,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:42,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-12 02:07:42,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:42,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:42,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:42,914 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:42,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:07:42,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:42,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-12 02:07:43,173 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:07:43,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:43,183 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:43,183 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:43,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:43,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:43,184 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:07:43,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:43,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:43,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2023-11-12 02:07:43,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:43,184 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:43,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:43,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:43,194 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:43,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:43,254 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:43,254 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:07:43,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:43,255 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:43,264 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 [2023-11-12 02:07:43,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:43,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:43,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:43,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:43,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-12 02:07:43,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:43,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:43,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:43,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:43,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:43,302 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:43,317 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 [2023-11-12 02:07:43,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:43,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:43,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:43,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:43,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:43,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:07:43,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:43,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-12 02:07:43,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:43,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:43,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:43,369 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:43,383 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 [2023-11-12 02:07:43,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-12 02:07:43,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:43,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:43,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:43,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:43,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:43,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:43,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:43,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:43,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:43,423 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:43,427 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 [2023-11-12 02:07:43,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:43,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:43,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:43,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:43,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:43,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:07:43,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:43,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-12 02:07:43,458 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:07:43,474 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-12 02:07:43,474 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:07:43,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:43,476 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:43,479 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:07:43,480 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:07:43,480 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:07:43,480 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2023-11-12 02:07:43,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-12 02:07:43,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:43,485 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:07:43,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:43,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,526 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:07:43,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:43,528 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 [2023-11-12 02:07:43,528 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 6 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:43,542 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 6. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 29 transitions. Complement of second has 6 states. [2023-11-12 02:07:43,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-12 02:07:43,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:43,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-12 02:07:43,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 1 letters. [2023-11-12 02:07:43,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:43,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 1 letters. [2023-11-12 02:07:43,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:43,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-12 02:07:43,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:43,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 29 transitions. [2023-11-12 02:07:43,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:43,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 20 transitions. [2023-11-12 02:07:43,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-12 02:07:43,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-12 02:07:43,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2023-11-12 02:07:43,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:07:43,550 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2023-11-12 02:07:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2023-11-12 02:07:43,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-12 02:07:43,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-11-12 02:07:43,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2023-11-12 02:07:43,552 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-11-12 02:07:43,553 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-11-12 02:07:43,553 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-12 02:07:43,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2023-11-12 02:07:43,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:43,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:07:43,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:07:43,556 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:07:43,556 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:07:43,556 INFO L748 eck$LassoCheckResult]: Stem: 161#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 162#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 159#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 160#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 165#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 168#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 157#L24-3 [2023-11-12 02:07:43,556 INFO L750 eck$LassoCheckResult]: Loop: 157#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 163#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 156#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 157#L24-3 [2023-11-12 02:07:43,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:43,557 INFO L85 PathProgramCache]: Analyzing trace with hash 889513866, now seen corresponding path program 1 times [2023-11-12 02:07:43,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:43,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664276892] [2023-11-12 02:07:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:43,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:43,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:43,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:43,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:43,574 INFO L85 PathProgramCache]: Analyzing trace with hash 56193, now seen corresponding path program 2 times [2023-11-12 02:07:43,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:43,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903246960] [2023-11-12 02:07:43,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:43,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:43,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:43,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:43,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:43,584 INFO L85 PathProgramCache]: Analyzing trace with hash -440607912, now seen corresponding path program 1 times [2023-11-12 02:07:43,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:43,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917699384] [2023-11-12 02:07:43,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:43,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:43,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:43,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:43,632 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:43,632 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:43,633 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:43,633 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:43,633 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:07:43,633 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,633 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:43,633 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:43,634 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2023-11-12 02:07:43,634 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:43,634 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:43,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:43,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:43,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:43,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:43,698 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:07:43,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:43,700 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:43,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:43,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:43,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-12 02:07:43,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:07:43,730 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:07:43,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:43,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:43,741 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:43,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:43,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:43,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-12 02:07:43,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:43,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:43,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:43,794 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:43,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:07:43,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:43,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-12 02:07:44,024 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:07:44,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,028 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:44,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:44,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:44,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:44,029 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:07:44,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,029 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:44,029 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:44,029 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2023-11-12 02:07:44,029 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:44,029 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:44,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:44,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:44,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:44,107 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:44,108 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:07:44,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:44,109 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:44,113 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 [2023-11-12 02:07:44,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:44,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:44,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:44,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:44,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:44,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:44,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-12 02:07:44,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:44,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:44,168 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:44,172 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 [2023-11-12 02:07:44,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:44,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:44,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:44,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:44,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:44,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:07:44,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:44,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-12 02:07:44,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:44,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:44,216 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:44,222 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 [2023-11-12 02:07:44,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:44,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:44,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:44,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:44,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:44,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:44,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-12 02:07:44,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:44,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,267 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-12 02:07:44,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:44,268 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:44,273 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 [2023-11-12 02:07:44,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:44,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:44,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:44,285 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-12 02:07:44,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-12 02:07:44,294 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-11-12 02:07:44,294 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-11-12 02:07:44,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:44,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:44,332 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:44,336 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 [2023-11-12 02:07:44,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:44,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:44,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:44,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:44,349 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-12 02:07:44,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-12 02:07:44,352 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-12 02:07:44,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:44,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:07:44,382 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-12 02:07:44,382 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-12 02:07:44,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:44,387 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:44,388 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:07:44,388 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:07:44,388 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:07:44,388 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-12 02:07:44,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-12 02:07:44,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,394 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:07:44,395 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then 1 else 0) could not be translated [2023-11-12 02:07:44,396 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then ~x~0 else ~x~0 + ~y~0) could not be translated [2023-11-12 02:07:44,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:44,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:44,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:44,454 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:07:44,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:44,666 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 [2023-11-12 02:07:44,666 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:44,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,728 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 46 transitions. Complement of second has 8 states. [2023-11-12 02:07:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-12 02:07:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:44,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2023-11-12 02:07:44,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-12 02:07:44,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:44,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-12 02:07:44,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:44,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 6 letters. Loop has 6 letters. [2023-11-12 02:07:44,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:44,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 46 transitions. [2023-11-12 02:07:44,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:44,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 23 states and 34 transitions. [2023-11-12 02:07:44,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-12 02:07:44,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-12 02:07:44,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2023-11-12 02:07:44,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:07:44,735 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 34 transitions. [2023-11-12 02:07:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2023-11-12 02:07:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2023-11-12 02:07:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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) [2023-11-12 02:07:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2023-11-12 02:07:44,738 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2023-11-12 02:07:44,738 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2023-11-12 02:07:44,738 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-12 02:07:44,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2023-11-12 02:07:44,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:44,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:07:44,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:07:44,744 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-12 02:07:44,746 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-12 02:07:44,746 INFO L748 eck$LassoCheckResult]: Stem: 261#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 262#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 259#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 260#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 272#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 271#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 269#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 266#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 268#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 267#L24-2 [2023-11-12 02:07:44,746 INFO L750 eck$LassoCheckResult]: Loop: 267#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 267#L24-2 [2023-11-12 02:07:44,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:44,747 INFO L85 PathProgramCache]: Analyzing trace with hash -440607910, now seen corresponding path program 2 times [2023-11-12 02:07:44,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:44,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698845194] [2023-11-12 02:07:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:44,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:44,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:44,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:44,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:44,791 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 2 times [2023-11-12 02:07:44,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:44,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902204332] [2023-11-12 02:07:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:44,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:44,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:44,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:44,813 INFO L85 PathProgramCache]: Analyzing trace with hash -773943299, now seen corresponding path program 3 times [2023-11-12 02:07:44,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:44,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642979207] [2023-11-12 02:07:44,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:44,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:44,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:44,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:44,874 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:44,874 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:44,874 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:44,874 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:44,874 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:07:44,875 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,875 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:44,875 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:44,875 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2023-11-12 02:07:44,875 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:44,875 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:44,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:44,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:44,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:44,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:44,942 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:44,942 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:07:44,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:44,945 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:44,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:44,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:44,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-12 02:07:44,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:44,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:44,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:44,981 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:44,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:07:44,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:45,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-12 02:07:45,243 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:07:45,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:45,252 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:45,253 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:45,253 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:45,253 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:45,253 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:07:45,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:45,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:45,253 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:45,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2023-11-12 02:07:45,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:45,254 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:45,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,319 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:45,320 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:07:45,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:45,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:45,321 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:45,332 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 [2023-11-12 02:07:45,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:45,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:45,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:45,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:45,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:45,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:07:45,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:45,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-12 02:07:45,366 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:07:45,371 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:07:45,371 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:07:45,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:45,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:45,373 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:45,377 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:07:45,377 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:07:45,377 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:07:45,378 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~z~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-12 02:07:45,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-12 02:07:45,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:45,383 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:07:45,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:45,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,426 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:07:45,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:45,428 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 [2023-11-12 02:07:45,428 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:45,439 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 31 transitions. Complement of second has 5 states. [2023-11-12 02:07:45,439 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 [2023-11-12 02:07:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:45,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-12 02:07:45,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2023-11-12 02:07:45,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:45,441 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:07:45,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:45,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,479 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:07:45,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:45,481 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 [2023-11-12 02:07:45,481 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:45,490 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 31 transitions. Complement of second has 5 states. [2023-11-12 02:07:45,490 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 [2023-11-12 02:07:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:45,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-12 02:07:45,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2023-11-12 02:07:45,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:45,492 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:07:45,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:45,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,529 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:07:45,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:45,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:45,531 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 [2023-11-12 02:07:45,531 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:45,543 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 46 transitions. Complement of second has 5 states. [2023-11-12 02:07:45,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-12 02:07:45,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:45,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-11-12 02:07:45,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 1 letters. [2023-11-12 02:07:45,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:45,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 1 letters. [2023-11-12 02:07:45,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:45,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-12 02:07:45,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:45,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 46 transitions. [2023-11-12 02:07:45,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-12 02:07:45,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 23 states and 32 transitions. [2023-11-12 02:07:45,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-12 02:07:45,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-12 02:07:45,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2023-11-12 02:07:45,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:07:45,550 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2023-11-12 02:07:45,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2023-11-12 02:07:45,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2023-11-12 02:07:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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) [2023-11-12 02:07:45,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2023-11-12 02:07:45,553 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2023-11-12 02:07:45,553 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2023-11-12 02:07:45,553 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-12 02:07:45,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2023-11-12 02:07:45,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-12 02:07:45,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:07:45,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:07:45,555 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-12 02:07:45,555 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:07:45,555 INFO L748 eck$LassoCheckResult]: Stem: 471#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 472#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 469#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 470#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 465#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 466#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 468#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 483#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 482#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 481#L24-2 [2023-11-12 02:07:45,555 INFO L750 eck$LassoCheckResult]: Loop: 481#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 473#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 474#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 480#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 481#L24-2 [2023-11-12 02:07:45,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -440607910, now seen corresponding path program 4 times [2023-11-12 02:07:45,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:45,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128528634] [2023-11-12 02:07:45,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:45,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:45,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:45,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:45,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:45,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1575536, now seen corresponding path program 1 times [2023-11-12 02:07:45,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:45,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328445069] [2023-11-12 02:07:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:45,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:45,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:45,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:45,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:45,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1160408759, now seen corresponding path program 5 times [2023-11-12 02:07:45,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:45,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027603433] [2023-11-12 02:07:45,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:45,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:45,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:45,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:45,647 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:45,648 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:45,648 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:45,648 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:45,648 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:07:45,648 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:45,648 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:45,648 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:45,649 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2023-11-12 02:07:45,649 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:45,649 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:45,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,732 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:45,732 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:07:45,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:45,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:45,734 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:45,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-12 02:07:45,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:45,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:45,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:45,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:45,775 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:45,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:07:45,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:45,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-12 02:07:45,973 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:07:45,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-12 02:07:45,976 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:45,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:45,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:45,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:45,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:07:45,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:45,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:45,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:45,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2023-11-12 02:07:45,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:45,977 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:45,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:45,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:46,058 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:46,058 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:07:46,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:46,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:46,060 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:46,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-12 02:07:46,064 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 [2023-11-12 02:07:46,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:46,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:46,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:46,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:46,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:46,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:46,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:46,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:46,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:46,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:46,104 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:46,108 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 [2023-11-12 02:07:46,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:46,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:46,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:46,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:46,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:46,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:07:46,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:46,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-12 02:07:46,147 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:07:46,150 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-12 02:07:46,150 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-12 02:07:46,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:46,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:46,156 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:46,167 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:07:46,167 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:07:46,167 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:07:46,167 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2023-11-12 02:07:46,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-12 02:07:46,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:46,176 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:07:46,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:46,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:46,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:46,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:07:46,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:46,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:46,239 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 [2023-11-12 02:07:46,240 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-12 02:07:46,265 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) Result 38 states and 58 transitions. Complement of second has 6 states. [2023-11-12 02:07:46,265 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 [2023-11-12 02:07:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-12 02:07:46,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-12 02:07:46,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-12 02:07:46,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:46,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-12 02:07:46,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:46,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-12 02:07:46,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:46,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 58 transitions. [2023-11-12 02:07:46,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:46,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 31 states and 47 transitions. [2023-11-12 02:07:46,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-12 02:07:46,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-12 02:07:46,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 47 transitions. [2023-11-12 02:07:46,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:07:46,271 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 47 transitions. [2023-11-12 02:07:46,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 47 transitions. [2023-11-12 02:07:46,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 22. [2023-11-12 02:07:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 21 states have internal predecessors, (35), 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) [2023-11-12 02:07:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 35 transitions. [2023-11-12 02:07:46,274 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 35 transitions. [2023-11-12 02:07:46,274 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 35 transitions. [2023-11-12 02:07:46,274 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-12 02:07:46,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 35 transitions. [2023-11-12 02:07:46,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:07:46,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:07:46,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:07:46,276 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-12 02:07:46,276 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:07:46,276 INFO L748 eck$LassoCheckResult]: Stem: 588#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 589#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 586#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 587#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 600#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 601#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 599#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 597#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 598#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 595#L24-3 [2023-11-12 02:07:46,276 INFO L750 eck$LassoCheckResult]: Loop: 595#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 590#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 591#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 595#L24-3 [2023-11-12 02:07:46,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:46,277 INFO L85 PathProgramCache]: Analyzing trace with hash -442288422, now seen corresponding path program 6 times [2023-11-12 02:07:46,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:46,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52434744] [2023-11-12 02:07:46,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:46,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:46,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:46,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:46,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:46,290 INFO L85 PathProgramCache]: Analyzing trace with hash 56193, now seen corresponding path program 3 times [2023-11-12 02:07:46,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:46,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034454436] [2023-11-12 02:07:46,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:46,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:46,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:07:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:07:46,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:07:46,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:46,296 INFO L85 PathProgramCache]: Analyzing trace with hash 745310728, now seen corresponding path program 7 times [2023-11-12 02:07:46,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:46,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687933980] [2023-11-12 02:07:46,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:46,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:46,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:46,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687933980] [2023-11-12 02:07:46,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687933980] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:07:46,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425973101] [2023-11-12 02:07:46,407 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-12 02:07:46,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:46,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:46,408 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:07:46,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-12 02:07:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:46,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:07:46,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:46,484 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:46,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:07:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:46,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425973101] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:07:46,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:07:46,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2023-11-12 02:07:46,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108873584] [2023-11-12 02:07:46,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:07:46,583 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:46,583 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:46,583 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:46,583 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:46,583 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:07:46,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:46,584 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:46,584 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:46,584 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2023-11-12 02:07:46,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:46,584 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:46,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:46,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:46,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:46,645 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:46,645 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:07:46,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:46,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:46,651 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:46,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:07:46,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:46,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-12 02:07:46,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:46,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:46,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:46,700 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:46,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:07:46,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:07:46,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-12 02:07:46,945 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:07:46,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:46,948 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:07:46,949 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:07:46,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:07:46,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:07:46,949 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:07:46,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:46,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:07:46,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:07:46,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2023-11-12 02:07:46,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:07:46,949 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:07:46,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:46,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:46,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:07:47,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:07:47,010 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:07:47,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:47,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:47,012 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:47,015 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 [2023-11-12 02:07:47,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:47,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:47,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:47,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:47,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:47,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:07:47,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:47,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-12 02:07:47,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:47,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:47,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:47,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:47,051 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:47,059 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 [2023-11-12 02:07:47,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:47,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:47,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:47,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:47,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:47,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:47,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-12 02:07:47,090 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:47,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:47,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:47,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:47,095 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:47,099 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 [2023-11-12 02:07:47,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:47,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:47,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:47,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:07:47,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:07:47,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:07:47,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-12 02:07:47,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:07:47,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:47,138 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-12 02:07:47,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:47,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:47,140 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:47,147 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 [2023-11-12 02:07:47,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:07:47,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:07:47,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:07:47,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:07:47,160 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-12 02:07:47,162 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-12 02:07:47,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:07:47,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-12 02:07:47,172 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:07:47,178 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-12 02:07:47,178 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:07:47,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:07:47,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:47,183 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:47,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:07:47,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:07:47,184 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:07:47,184 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-12 02:07:47,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-12 02:07:47,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:47,189 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:07:47,190 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then 1 else 0) could not be translated [2023-11-12 02:07:47,190 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then ~x~0 else ~x~0 + ~y~0) could not be translated [2023-11-12 02:07:47,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:47,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:47,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,271 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:07:47,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:47,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:47,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:47,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:47,438 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 [2023-11-12 02:07:47,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 35 transitions. cyclomatic complexity: 18 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 02:07:47,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 35 transitions. cyclomatic complexity: 18. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 33 states and 50 transitions. Complement of second has 7 states. [2023-11-12 02:07:47,470 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 [2023-11-12 02:07:47,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 02:07:47,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-12 02:07:47,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-12 02:07:47,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:47,475 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:07:47,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:47,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,522 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:07:47,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:47,690 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-12 02:07:47,691 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 35 transitions. cyclomatic complexity: 18 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 02:07:47,722 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 35 transitions. cyclomatic complexity: 18. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 47 transitions. Complement of second has 7 states. [2023-11-12 02:07:47,723 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 [2023-11-12 02:07:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 02:07:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-12 02:07:47,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-12 02:07:47,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:47,725 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:07:47,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:47,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,766 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:07:47,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:47,907 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 3 loop predicates [2023-11-12 02:07:47,907 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 35 transitions. cyclomatic complexity: 18 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 02:07:47,942 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 35 transitions. cyclomatic complexity: 18. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 39 states and 59 transitions. Complement of second has 6 states. [2023-11-12 02:07:47,943 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 [2023-11-12 02:07:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 02:07:47,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-12 02:07:47,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-12 02:07:47,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:47,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 3 letters. [2023-11-12 02:07:47,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:47,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 6 letters. [2023-11-12 02:07:47,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:07:47,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 59 transitions. [2023-11-12 02:07:47,948 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:07:47,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2023-11-12 02:07:47,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-12 02:07:47,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-12 02:07:47,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-12 02:07:47,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:47,949 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:07:47,950 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:07:47,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:47,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:07:47,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:07:47,953 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 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) [2023-11-12 02:07:47,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:47,956 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-12 02:07:47,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-12 02:07:47,957 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:07:47,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:07:47,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-12 02:07:47,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-12 02:07:47,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-12 02:07:47,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:47,957 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:07:47,957 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:07:47,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:07:47,958 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:07:47,958 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-12 02:07:47,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:07:47,959 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:07:47,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-12 02:07:47,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:07:47 BoogieIcfgContainer [2023-11-12 02:07:47,967 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:07:47,968 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:07:47,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:07:47,968 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:07:47,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:40" (3/4) ... [2023-11-12 02:07:47,970 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:07:47,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:07:47,972 INFO L158 Benchmark]: Toolchain (without parser) took 8084.86ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 142.2MB in the beginning and 100.3MB in the end (delta: 41.9MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2023-11-12 02:07:47,972 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 130.0MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:07:47,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.92ms. Allocated memory is still 174.1MB. Free memory was 142.0MB in the beginning and 137.2MB in the end (delta: 4.8MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-11-12 02:07:47,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.69ms. Allocated memory is still 174.1MB. Free memory was 137.2MB in the beginning and 136.4MB in the end (delta: 824.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:07:47,974 INFO L158 Benchmark]: Boogie Preprocessor took 26.97ms. Allocated memory is still 174.1MB. Free memory was 136.4MB in the beginning and 135.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:07:47,974 INFO L158 Benchmark]: RCFGBuilder took 352.74ms. Allocated memory is still 174.1MB. Free memory was 135.1MB in the beginning and 143.5MB in the end (delta: -8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:07:47,974 INFO L158 Benchmark]: BuchiAutomizer took 7388.73ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 142.6MB in the beginning and 101.4MB in the end (delta: 41.2MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2023-11-12 02:07:47,975 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 209.7MB. Free memory was 101.4MB in the beginning and 100.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:07:47,977 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 130.0MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.92ms. Allocated memory is still 174.1MB. Free memory was 142.0MB in the beginning and 137.2MB in the end (delta: 4.8MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.69ms. Allocated memory is still 174.1MB. Free memory was 137.2MB in the beginning and 136.4MB in the end (delta: 824.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.97ms. Allocated memory is still 174.1MB. Free memory was 136.4MB in the beginning and 135.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.74ms. Allocated memory is still 174.1MB. Free memory was 135.1MB in the beginning and 143.5MB in the end (delta: -8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7388.73ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 142.6MB in the beginning and 101.4MB in the end (delta: 41.2MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 209.7MB. Free memory was 101.4MB in the beginning and 100.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then ~x~0 else ~y~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then ~x~0 else ~x~0 + ~y~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if ~x~0 > 0 then ~x~0 else ~x~0 + ~y~0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function NULL, NULL and consists of 5 locations. One deterministic module has affine ranking function ((-1 * y) + z) and consists of 4 locations. One deterministic module has 2-nested ranking function NULL, NULL and consists of 5 locations. One deterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function ((-1 * y) + z) and consists of 4 locations. One nondeterministic module has 2-nested ranking function NULL, NULL and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.3s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 4 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, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 71 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax164 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-12 02:07:48,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:48,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70d80cf1-30ff-4232-b530-b95d6d4671ee/bin/uautomizer-verify-uTZkv6EMXl/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