./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU --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 faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:14:28,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:14:28,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:14:28,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:14:28,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:14:28,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:14:28,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:14:28,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:14:28,613 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:14:28,613 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:14:28,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:14:28,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:14:28,620 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:14:28,620 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:14:28,621 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:14:28,621 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:14:28,624 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:14:28,625 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:14:28,627 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:14:28,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:14:28,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:14:28,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:14:28,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:14:28,632 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:14:28,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:14:28,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:14:28,638 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:14:28,638 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:14:28,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:14:28,639 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:14:28,639 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:14:28,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:14:28,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:14:28,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:14:28,641 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:14:28,641 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:14:28,642 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_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c [2024-10-31 22:14:29,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:14:29,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:14:29,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:14:29,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:14:29,096 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:14:29,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c Unable to find full path for "g++" [2024-10-31 22:14:31,475 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:14:31,656 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:14:31,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2024-10-31 22:14:31,663 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/data/0f4af78ec/88af6b39b8434c6c818a8baabfd02607/FLAGd1b2ef6c3 [2024-10-31 22:14:31,679 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/data/0f4af78ec/88af6b39b8434c6c818a8baabfd02607 [2024-10-31 22:14:31,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:14:31,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:14:31,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:31,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:14:31,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:14:31,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:31,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c736cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31, skipping insertion in model container [2024-10-31 22:14:31,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:31,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:14:31,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:31,901 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:14:31,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:31,931 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:14:31,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31 WrapperNode [2024-10-31 22:14:31,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:31,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:31,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:14:31,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:14:31,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:31,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:31,969 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-10-31 22:14:31,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:31,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:14:31,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:14:31,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:14:31,993 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:31,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:31,998 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:32,008 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:14:32,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:32,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:32,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:32,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:32,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:32,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:32,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:14:32,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:14:32,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:14:32,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:14:32,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (1/1) ... [2024-10-31 22:14:32,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:32,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:32,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:32,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:14:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:14:32,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:14:32,255 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:14:32,258 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:14:32,358 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-10-31 22:14:32,360 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:14:32,382 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:14:32,383 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:14:32,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:32 BoogieIcfgContainer [2024-10-31 22:14:32,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:14:32,386 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:14:32,386 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:14:32,392 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:14:32,393 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:32,393 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:14:31" (1/3) ... [2024-10-31 22:14:32,395 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48b16110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:14:32, skipping insertion in model container [2024-10-31 22:14:32,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:32,396 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:31" (2/3) ... [2024-10-31 22:14:32,396 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48b16110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:14:32, skipping insertion in model container [2024-10-31 22:14:32,397 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:32,397 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:32" (3/3) ... [2024-10-31 22:14:32,400 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthyIterative.c [2024-10-31 22:14:32,485 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:14:32,485 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:14:32,485 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:14:32,485 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:14:32,486 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:14:32,486 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:14:32,486 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:14:32,486 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:14:32,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:32,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:14:32,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:32,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:32,517 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:14:32,517 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:14:32,517 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:14:32,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:32,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:14:32,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:32,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:32,520 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:14:32,520 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:14:32,535 INFO L745 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 2#L12-2true [2024-10-31 22:14:32,536 INFO L747 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~c~0#1 > 0); 8#L12true assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2#L12-2true [2024-10-31 22:14:32,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:32,544 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:14:32,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:32,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536550091] [2024-10-31 22:14:32,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:32,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:32,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:32,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:32,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:32,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-10-31 22:14:32,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:32,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629545305] [2024-10-31 22:14:32,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:32,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:32,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:32,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:32,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:32,686 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-10-31 22:14:32,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:32,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930254766] [2024-10-31 22:14:32,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:32,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:32,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:32,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:32,880 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:32,881 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:32,882 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:32,882 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:32,882 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:32,882 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:32,882 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:32,883 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:32,883 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2024-10-31 22:14:32,883 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:32,884 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:32,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:32,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:32,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:32,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:33,060 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:33,060 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:33,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:14:33,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:33,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:33,103 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:33,103 INFO L401 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: [] [2024-10-31 22:14:33,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:33,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,126 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:14:33,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:33,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:33,155 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:33,155 INFO L401 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: [] [2024-10-31 22:14:33,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:14:33,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,177 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:14:33,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:33,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:33,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:14:33,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,219 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:14:33,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:33,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:33,270 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:33,271 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 0] [2024-10-31 22:14:33,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:14:33,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:14:33,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:33,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:33,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:14:33,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,368 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:14:33,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:33,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:33,446 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:33,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:14:33,461 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:33,461 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:33,461 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:33,461 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:33,461 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:33,461 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,461 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:33,462 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:33,462 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2024-10-31 22:14:33,462 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:33,462 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:33,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:33,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:33,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:33,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:33,633 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:33,638 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:33,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,643 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:14:33,647 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 [2024-10-31 22:14:33,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:33,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:33,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:33,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:33,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:33,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:33,684 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:33,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:14:33,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,705 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:14:33,707 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 [2024-10-31 22:14:33,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:33,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:33,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:33,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:33,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:33,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:33,737 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:33,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:14:33,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,758 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:14:33,761 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 [2024-10-31 22:14:33,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:33,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:33,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:33,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:33,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:33,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:33,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:33,789 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:33,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:14:33,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,827 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:14:33,831 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 [2024-10-31 22:14:33,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:33,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:33,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:33,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:33,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:33,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:33,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:33,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:33,862 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:33,862 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:33,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:33,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:33,872 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:33,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:14:33,874 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:33,874 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:33,875 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:33,875 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2024-10-31 22:14:33,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:33,923 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:33,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:33,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:33,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:33,997 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:33,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:34,051 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 [2024-10-31 22:14:34,053 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:34,101 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 28 transitions. Complement of second has 6 states. [2024-10-31 22:14:34,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:34,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:34,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-10-31 22:14:34,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-31 22:14:34,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:34,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 22:14:34,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:34,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 22:14:34,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:34,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2024-10-31 22:14:34,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:14:34,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2024-10-31 22:14:34,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:14:34,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:14:34,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-10-31 22:14:34,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:34,125 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-31 22:14:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-10-31 22:14:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-31 22:14:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2024-10-31 22:14:34,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-10-31 22:14:34,153 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-31 22:14:34,154 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-31 22:14:34,154 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:14:34,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-10-31 22:14:34,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:14:34,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:34,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:34,157 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:14:34,157 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:14:34,157 INFO L745 eck$LassoCheckResult]: Stem: 68#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 69#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 70#L12-2 assume !!(main_~c~0#1 > 0); 67#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 63#L12-2 [2024-10-31 22:14:34,157 INFO L747 eck$LassoCheckResult]: Loop: 63#L12-2 assume !!(main_~c~0#1 > 0); 64#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 63#L12-2 [2024-10-31 22:14:34,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:34,158 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-31 22:14:34,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:34,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540446115] [2024-10-31 22:14:34,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:34,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:34,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:34,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:34,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:34,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2024-10-31 22:14:34,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:34,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418374846] [2024-10-31 22:14:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:34,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:34,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:34,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:34,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2024-10-31 22:14:34,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:34,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203080763] [2024-10-31 22:14:34,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:34,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:34,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:34,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203080763] [2024-10-31 22:14:34,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203080763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:34,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:34,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:14:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497603785] [2024-10-31 22:14:34,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:34,332 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:34,332 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:34,332 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:34,333 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:34,333 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:34,333 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,333 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:34,333 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:34,333 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2024-10-31 22:14:34,333 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:34,333 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:34,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:34,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:34,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:34,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:34,412 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:34,413 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:34,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,415 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:14:34,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:34,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:34,444 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:34,444 INFO L401 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: [] [2024-10-31 22:14:34,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:14:34,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,465 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:14:34,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:34,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:34,492 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:34,493 INFO L401 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: [] [2024-10-31 22:14:34,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:14:34,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,517 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:14:34,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:34,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:34,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:14:34,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,561 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:14:34,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:34,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:34,601 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:34,601 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 0] [2024-10-31 22:14:34,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:14:34,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,620 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:14:34,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:34,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:34,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:14:34,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,661 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:14:34,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:34,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:34,707 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:34,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:34,712 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:34,712 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:34,712 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:34,712 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:34,712 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:34,712 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,713 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:34,713 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:34,713 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2024-10-31 22:14:34,713 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:34,713 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:34,714 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:34,725 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:34,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:34,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:34,808 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:34,809 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:34,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,811 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:14:34,814 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 [2024-10-31 22:14:34,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:34,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:34,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:34,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:34,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:34,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:34,836 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:34,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:14:34,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,857 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:14:34,861 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 [2024-10-31 22:14:34,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:34,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:34,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:34,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:34,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:34,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:34,885 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:34,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:34,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,903 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:14:34,906 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 [2024-10-31 22:14:34,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:34,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:34,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:34,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:34,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:34,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:34,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:34,922 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:34,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:14:34,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,943 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:14:34,946 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 [2024-10-31 22:14:34,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:34,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:34,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:34,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:34,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:34,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:34,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:34,967 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:34,970 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:34,971 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:34,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:34,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:34,973 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:34,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:14:34,976 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:34,976 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:34,976 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:34,976 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2024-10-31 22:14:34,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:34,992 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:35,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:35,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:35,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:35,046 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:35,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:35,052 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 [2024-10-31 22:14:35,052 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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) [2024-10-31 22:14:35,064 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 12 states and 17 transitions. Complement of second has 5 states. [2024-10-31 22:14:35,064 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 [2024-10-31 22:14:35,065 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) [2024-10-31 22:14:35,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-31 22:14:35,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 22:14:35,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:35,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:14:35,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:35,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-31 22:14:35,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:35,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2024-10-31 22:14:35,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:14:35,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2024-10-31 22:14:35,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-31 22:14:35,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-31 22:14:35,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2024-10-31 22:14:35,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:35,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-10-31 22:14:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2024-10-31 22:14:35,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-31 22:14:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2024-10-31 22:14:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-10-31 22:14:35,071 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-10-31 22:14:35,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:35,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:14:35,075 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-10-31 22:14:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:35,095 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2024-10-31 22:14:35,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2024-10-31 22:14:35,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:14:35,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2024-10-31 22:14:35,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-31 22:14:35,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-31 22:14:35,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2024-10-31 22:14:35,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:35,098 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-10-31 22:14:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2024-10-31 22:14:35,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-10-31 22:14:35,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2024-10-31 22:14:35,100 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-10-31 22:14:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:14:35,101 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-10-31 22:14:35,102 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:14:35,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2024-10-31 22:14:35,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:14:35,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:35,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:35,103 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2024-10-31 22:14:35,103 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:14:35,103 INFO L745 eck$LassoCheckResult]: Stem: 154#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 149#L12-2 assume !!(main_~c~0#1 > 0); 150#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 160#L12-2 assume !!(main_~c~0#1 > 0); 156#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 157#L12-2 assume !!(main_~c~0#1 > 0); 152#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 159#L12-2 [2024-10-31 22:14:35,103 INFO L747 eck$LassoCheckResult]: Loop: 159#L12-2 assume !!(main_~c~0#1 > 0); 158#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 159#L12-2 [2024-10-31 22:14:35,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash 297591406, now seen corresponding path program 2 times [2024-10-31 22:14:35,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:35,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615020158] [2024-10-31 22:14:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:35,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:35,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:35,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:35,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2024-10-31 22:14:35,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:35,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033245070] [2024-10-31 22:14:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:35,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:35,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:35,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:35,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:35,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1777467309, now seen corresponding path program 3 times [2024-10-31 22:14:35,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:35,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833729417] [2024-10-31 22:14:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:35,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:35,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:35,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833729417] [2024-10-31 22:14:35,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833729417] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:35,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816295746] [2024-10-31 22:14:35,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:14:35,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:35,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:35,232 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:35,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-31 22:14:35,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-31 22:14:35,297 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-31 22:14:35,297 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:35,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:35,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:35,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:14:35,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:35,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:14:35,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816295746] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:35,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:35,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-10-31 22:14:35,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328353272] [2024-10-31 22:14:35,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:35,447 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:35,447 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:35,447 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:35,447 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:35,447 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:35,447 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,447 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:35,447 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:35,447 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2024-10-31 22:14:35,447 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:35,447 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:35,449 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:35,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:35,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:35,476 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:35,536 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:35,536 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:35,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:35,545 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:35,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:35,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:35,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:14:35,571 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:35,571 INFO L401 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: [] [2024-10-31 22:14:35,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:35,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:35,585 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:35,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:14:35,587 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:35,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:35,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-31 22:14:35,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:35,625 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:35,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:14:35,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:35,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:35,666 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:35,666 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 0] [2024-10-31 22:14:35,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:35,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:35,688 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:35,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:14:35,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:35,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:35,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:14:35,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:35,732 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:35,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:14:35,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:35,735 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:35,781 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:35,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-31 22:14:35,785 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:35,786 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:35,786 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:35,786 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:35,786 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:35,786 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,786 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:35,786 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:35,786 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2024-10-31 22:14:35,786 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:35,786 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:35,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:35,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:35,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:35,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:35,896 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:35,896 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:35,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:35,898 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:35,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:14:35,904 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 [2024-10-31 22:14:35,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:35,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:35,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:35,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:35,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:35,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:35,932 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:35,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:35,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:35,955 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:35,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:14:35,957 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 [2024-10-31 22:14:35,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:35,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:35,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:35,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:35,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:35,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:35,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:35,977 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:35,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-31 22:14:35,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:35,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:36,002 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:36,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:14:36,004 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 [2024-10-31 22:14:36,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:36,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:36,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:36,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:36,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:36,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:36,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:36,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:36,027 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:36,027 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:36,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:36,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:36,030 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:36,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:14:36,032 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:36,032 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:36,032 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:36,033 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2024-10-31 22:14:36,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-31 22:14:36,054 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:36,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:36,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:36,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:36,122 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:36,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:36,127 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 [2024-10-31 22:14:36,127 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:36,143 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 20 transitions. Complement of second has 5 states. [2024-10-31 22:14:36,145 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 [2024-10-31 22:14:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-31 22:14:36,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-31 22:14:36,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:36,146 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:36,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:36,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:36,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:36,203 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:36,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:36,208 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 [2024-10-31 22:14:36,209 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:36,220 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 20 transitions. Complement of second has 5 states. [2024-10-31 22:14:36,220 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 [2024-10-31 22:14:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-31 22:14:36,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-31 22:14:36,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:36,222 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:36,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:36,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:36,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:36,275 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:36,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:36,280 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 [2024-10-31 22:14:36,280 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:36,293 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 23 transitions. Complement of second has 4 states. [2024-10-31 22:14:36,293 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 [2024-10-31 22:14:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-10-31 22:14:36,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-31 22:14:36,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:36,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-31 22:14:36,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:36,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2024-10-31 22:14:36,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:36,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2024-10-31 22:14:36,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:14:36,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2024-10-31 22:14:36,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:14:36,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-31 22:14:36,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2024-10-31 22:14:36,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:36,300 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-10-31 22:14:36,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2024-10-31 22:14:36,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2024-10-31 22:14:36,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-10-31 22:14:36,302 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-31 22:14:36,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:36,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:14:36,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:36,303 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2024-10-31 22:14:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:36,328 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2024-10-31 22:14:36,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2024-10-31 22:14:36,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:14:36,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2024-10-31 22:14:36,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-31 22:14:36,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-31 22:14:36,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2024-10-31 22:14:36,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:36,330 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-31 22:14:36,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2024-10-31 22:14:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2024-10-31 22:14:36,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2024-10-31 22:14:36,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-10-31 22:14:36,332 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-31 22:14:36,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:14:36,334 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-31 22:14:36,334 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:14:36,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-10-31 22:14:36,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:14:36,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:36,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:36,335 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:14:36,335 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:14:36,335 INFO L745 eck$LassoCheckResult]: Stem: 404#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 405#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 399#L12-2 [2024-10-31 22:14:36,335 INFO L747 eck$LassoCheckResult]: Loop: 399#L12-2 assume !!(main_~c~0#1 > 0); 400#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 408#L12-2 assume !!(main_~c~0#1 > 0); 406#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 399#L12-2 [2024-10-31 22:14:36,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,336 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-31 22:14:36,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:36,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910501257] [2024-10-31 22:14:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:36,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:36,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:36,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:36,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1266953, now seen corresponding path program 1 times [2024-10-31 22:14:36,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:36,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034316647] [2024-10-31 22:14:36,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:36,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:36,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:36,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:36,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,371 INFO L85 PathProgramCache]: Analyzing trace with hash 889694155, now seen corresponding path program 4 times [2024-10-31 22:14:36,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:36,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815619708] [2024-10-31 22:14:36,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:36,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:36,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:36,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:36,472 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:36,472 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:36,472 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:36,473 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:36,473 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:36,473 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:36,473 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:36,473 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:36,473 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2024-10-31 22:14:36,473 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:36,473 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:36,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:36,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:36,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:36,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:36,561 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:36,562 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:36,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:36,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:36,564 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:36,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:14:36,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:36,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:36,597 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:36,597 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:14:36,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:36,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:36,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:36,620 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:36,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:14:36,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:36,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:36,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-10-31 22:14:36,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:36,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:36,663 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:36,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:14:36,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:36,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:36,711 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:36,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:36,715 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:36,715 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:36,715 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:36,715 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:36,716 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:36,716 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:36,716 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:36,716 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:36,716 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2024-10-31 22:14:36,716 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:36,716 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:36,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:36,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:36,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:36,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:36,810 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:36,810 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:36,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:36,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:36,813 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:36,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:14:36,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:14:36,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:36,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:36,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:36,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:36,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:36,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:36,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:36,835 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:36,838 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:36,838 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:36,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:36,841 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:36,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:14:36,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:36,846 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:36,846 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:36,846 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 201 Supporting invariants [] [2024-10-31 22:14:36,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 22:14:36,868 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:36,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:36,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:36,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:36,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:36,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:36,955 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 [2024-10-31 22:14:36,955 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-10-31 22:14:36,969 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 21 states and 27 transitions. Complement of second has 5 states. [2024-10-31 22:14:36,970 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 [2024-10-31 22:14:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-10-31 22:14:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2024-10-31 22:14:36,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 22:14:36,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:36,974 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:36,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:37,045 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:14:37,046 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-10-31 22:14:37,073 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 25 states and 33 transitions. Complement of second has 7 states. [2024-10-31 22:14:37,074 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 [2024-10-31 22:14:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-10-31 22:14:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-10-31 22:14:37,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 22:14:37,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:37,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:14:37,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:37,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2024-10-31 22:14:37,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:37,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2024-10-31 22:14:37,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:14:37,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2024-10-31 22:14:37,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:14:37,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:14:37,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-10-31 22:14:37,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:37,081 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-10-31 22:14:37,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-10-31 22:14:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2024-10-31 22:14:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2024-10-31 22:14:37,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2024-10-31 22:14:37,082 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-31 22:14:37,082 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-10-31 22:14:37,083 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:14:37,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2024-10-31 22:14:37,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:14:37,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:37,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:37,084 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2024-10-31 22:14:37,084 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:14:37,084 INFO L745 eck$LassoCheckResult]: Stem: 522#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 523#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 519#L12-2 assume !!(main_~c~0#1 > 0); 520#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 526#L12-2 assume !!(main_~c~0#1 > 0); 529#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 532#L12-2 assume !!(main_~c~0#1 > 0); 531#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 528#L12-2 assume !!(main_~c~0#1 > 0); 524#L12 [2024-10-31 22:14:37,084 INFO L747 eck$LassoCheckResult]: Loop: 524#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 525#L12-2 assume !!(main_~c~0#1 > 0); 524#L12 [2024-10-31 22:14:37,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,085 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 5 times [2024-10-31 22:14:37,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:37,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105570079] [2024-10-31 22:14:37,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:37,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:37,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2024-10-31 22:14:37,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:37,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201277491] [2024-10-31 22:14:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:37,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:37,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,122 INFO L85 PathProgramCache]: Analyzing trace with hash 790346520, now seen corresponding path program 6 times [2024-10-31 22:14:37,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:37,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807836646] [2024-10-31 22:14:37,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:37,176 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:37,177 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:37,177 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:37,177 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:37,177 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:37,177 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:37,177 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:37,177 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:37,177 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2024-10-31 22:14:37,178 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:37,178 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:37,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:37,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:37,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:37,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:37,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-10-31 22:14:37,308 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:37,310 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:37,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:37,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:37,314 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:37,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:37,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:14:37,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:37,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:37,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:37,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:37,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:37,356 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:37,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:14:37,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:37,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:37,400 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:37,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:37,404 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:37,404 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:37,404 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:37,404 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:37,404 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:37,404 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:37,404 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:37,404 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:37,404 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2024-10-31 22:14:37,405 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:37,405 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:37,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:37,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:37,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:37,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:37,497 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:37,498 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:37,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:37,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:37,501 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:37,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:14:37,503 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 [2024-10-31 22:14:37,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:37,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:37,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:37,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:37,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:37,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:37,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:37,524 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:37,527 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:37,528 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:14:37,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:37,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:37,529 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:37,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:14:37,531 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:37,531 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:37,531 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:37,532 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:14:37,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:37,571 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:37,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,628 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:37,654 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 [2024-10-31 22:14:37,654 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:37,660 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 3 states. [2024-10-31 22:14:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:37,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:37,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-10-31 22:14:37,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-31 22:14:37,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:37,663 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:37,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,713 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:37,736 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:14:37,736 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:37,741 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 3 states. [2024-10-31 22:14:37,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-10-31 22:14:37,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-31 22:14:37,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:37,744 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:37,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,791 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:37,811 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:14:37,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:37,823 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 30 transitions. Complement of second has 4 states. [2024-10-31 22:14:37,824 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 [2024-10-31 22:14:37,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-31 22:14:37,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-31 22:14:37,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:37,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-31 22:14:37,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:37,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 22:14:37,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:37,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2024-10-31 22:14:37,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:14:37,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 25 transitions. [2024-10-31 22:14:37,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:14:37,834 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:14:37,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2024-10-31 22:14:37,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:37,835 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-10-31 22:14:37,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2024-10-31 22:14:37,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2024-10-31 22:14:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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) [2024-10-31 22:14:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2024-10-31 22:14:37,837 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-10-31 22:14:37,837 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-10-31 22:14:37,837 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:14:37,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2024-10-31 22:14:37,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:14:37,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:37,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:37,840 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2024-10-31 22:14:37,840 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:14:37,840 INFO L745 eck$LassoCheckResult]: Stem: 716#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 717#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 713#L12-2 assume !!(main_~c~0#1 > 0); 714#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 728#L12-2 assume !!(main_~c~0#1 > 0); 722#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 726#L12-2 assume !!(main_~c~0#1 > 0); 725#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 721#L12-2 assume !!(main_~c~0#1 > 0); 718#L12 [2024-10-31 22:14:37,840 INFO L747 eck$LassoCheckResult]: Loop: 718#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 719#L12-2 assume !!(main_~c~0#1 > 0); 723#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 724#L12-2 assume !!(main_~c~0#1 > 0); 718#L12 [2024-10-31 22:14:37,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,841 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 7 times [2024-10-31 22:14:37,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:37,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733527865] [2024-10-31 22:14:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:37,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:37,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2024-10-31 22:14:37,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:37,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113641513] [2024-10-31 22:14:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:37,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:37,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 8 times [2024-10-31 22:14:37,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:37,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264222385] [2024-10-31 22:14:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:37,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:37,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:37,993 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:37,993 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:37,993 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:37,993 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:37,993 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:37,994 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:37,994 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:37,994 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:37,994 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2024-10-31 22:14:37,994 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:37,994 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:37,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:38,003 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:38,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:38,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:38,069 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:38,070 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:38,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,075 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:14:38,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:38,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:38,106 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:38,106 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=2} Honda state: {ULTIMATE.start_main_~c~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:14:38,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-10-31 22:14:38,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,127 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 22:14:38,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:38,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:38,153 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:38,153 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:14:38,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:38,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,175 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 22:14:38,177 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:38,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:38,202 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:38,202 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:14:38,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-10-31 22:14:38,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,220 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 22:14:38,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:38,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:38,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-10-31 22:14:38,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,261 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 22:14:38,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:38,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:38,284 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:38,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-31 22:14:38,303 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:38,303 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:38,304 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:38,304 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:38,304 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:38,304 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,304 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:38,304 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:38,304 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2024-10-31 22:14:38,304 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:38,304 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:38,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:38,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:38,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:38,326 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:38,385 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:38,386 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:38,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,388 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 22:14:38,390 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 [2024-10-31 22:14:38,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:38,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:38,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:38,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:38,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:38,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:38,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:38,411 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:38,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-10-31 22:14:38,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,432 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 22:14:38,435 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 [2024-10-31 22:14:38,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:38,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:38,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:38,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:38,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:38,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:38,459 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:38,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:38,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,481 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 22:14:38,484 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 [2024-10-31 22:14:38,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:38,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:38,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:38,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:38,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:38,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:38,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:38,502 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:38,504 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:14:38,504 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:38,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:38,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:38,505 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:38,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 22:14:38,507 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:38,508 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:38,508 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:38,508 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 221 Supporting invariants [] [2024-10-31 22:14:38,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-10-31 22:14:38,526 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:38,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:38,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:38,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:38,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:38,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:38,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:38,625 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 [2024-10-31 22:14:38,625 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:38,670 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 33 transitions. Complement of second has 7 states. [2024-10-31 22:14:38,673 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 [2024-10-31 22:14:38,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:38,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:14:38,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 22:14:38,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:38,674 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:38,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:38,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:38,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:38,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:38,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:38,766 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 [2024-10-31 22:14:38,766 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:38,803 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 33 transitions. Complement of second has 7 states. [2024-10-31 22:14:38,803 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 [2024-10-31 22:14:38,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 22:14:38,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 22:14:38,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:38,804 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:38,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:38,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:38,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:38,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:38,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:38,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:38,937 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 [2024-10-31 22:14:38,937 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:38,985 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 53 transitions. Complement of second has 8 states. [2024-10-31 22:14:38,988 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 [2024-10-31 22:14:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-10-31 22:14:38,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 22:14:38,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:38,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2024-10-31 22:14:38,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:38,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 8 letters. [2024-10-31 22:14:38,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:38,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2024-10-31 22:14:38,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:14:38,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 40 transitions. [2024-10-31 22:14:38,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:14:38,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-31 22:14:38,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2024-10-31 22:14:38,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:38,996 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2024-10-31 22:14:38,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2024-10-31 22:14:38,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2024-10-31 22:14:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 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) [2024-10-31 22:14:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2024-10-31 22:14:39,002 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2024-10-31 22:14:39,002 INFO L425 stractBuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2024-10-31 22:14:39,002 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:14:39,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2024-10-31 22:14:39,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 22:14:39,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:39,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:39,007 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 3, 3, 1, 1] [2024-10-31 22:14:39,008 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 3, 2] [2024-10-31 22:14:39,008 INFO L745 eck$LassoCheckResult]: Stem: 988#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 989#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 990#L12-2 assume !!(main_~c~0#1 > 0); 999#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1000#L12-2 assume !!(main_~c~0#1 > 0); 996#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 995#L12-2 assume !!(main_~c~0#1 > 0); 994#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 984#L12-2 assume !!(main_~c~0#1 > 0); 985#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 992#L12-2 assume !!(main_~c~0#1 > 0); 1007#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1006#L12-2 assume !!(main_~c~0#1 > 0); 1004#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1003#L12-2 assume !!(main_~c~0#1 > 0); 1005#L12 [2024-10-31 22:14:39,008 INFO L747 eck$LassoCheckResult]: Loop: 1005#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 986#L12-2 assume !!(main_~c~0#1 > 0); 987#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1008#L12-2 assume !!(main_~c~0#1 > 0); 993#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 992#L12-2 assume !!(main_~c~0#1 > 0); 1007#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1006#L12-2 assume !!(main_~c~0#1 > 0); 1004#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1003#L12-2 assume !!(main_~c~0#1 > 0); 1005#L12 [2024-10-31 22:14:39,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1981740944, now seen corresponding path program 9 times [2024-10-31 22:14:39,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:39,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269636155] [2024-10-31 22:14:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:39,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:14:39,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:39,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269636155] [2024-10-31 22:14:39,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269636155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:39,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:39,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:14:39,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327029192] [2024-10-31 22:14:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:39,123 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:14:39,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:39,123 INFO L85 PathProgramCache]: Analyzing trace with hash 743859438, now seen corresponding path program 3 times [2024-10-31 22:14:39,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:39,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652673365] [2024-10-31 22:14:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:39,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:39,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:39,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:39,262 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:39,262 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:39,262 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:39,262 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:39,262 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:39,262 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:39,262 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:39,262 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:39,263 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2024-10-31 22:14:39,263 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:39,263 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:39,264 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:39,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:39,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:39,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:39,327 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:39,327 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:39,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:39,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:39,330 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:39,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 22:14:39,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:39,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:39,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:39,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:39,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:39,364 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:39,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 22:14:39,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:39,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:39,379 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:39,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-10-31 22:14:39,397 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:39,397 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:39,397 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:39,397 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:39,397 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:39,397 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:39,397 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:39,398 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:39,398 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2024-10-31 22:14:39,398 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:39,398 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:39,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:39,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:39,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:39,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:39,472 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:39,473 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:39,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:39,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:39,475 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:39,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-31 22:14:39,477 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 [2024-10-31 22:14:39,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:39,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:39,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:39,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:39,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:39,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:39,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:39,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:39,498 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:14:39,498 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:39,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:39,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:39,502 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:39,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-10-31 22:14:39,505 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:39,505 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:39,505 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:39,505 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:14:39,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:39,523 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:39,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:39,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:39,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:39,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:14:39,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:39,699 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-10-31 22:14:39,703 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:39,712 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 3 states. [2024-10-31 22:14:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-10-31 22:14:39,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2024-10-31 22:14:39,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:39,713 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:39,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:39,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:39,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:39,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:39,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-10-31 22:14:39,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-10-31 22:14:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:39,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:14:39,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:39,884 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:39,885 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-10-31 22:14:39,885 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:39,889 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 3 states. [2024-10-31 22:14:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:39,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-10-31 22:14:39,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2024-10-31 22:14:39,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:39,891 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:39,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:39,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:39,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:39,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:14:39,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:40,034 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 6 loop predicates [2024-10-31 22:14:40,034 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:40,049 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 55 transitions. Complement of second has 4 states. [2024-10-31 22:14:40,049 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 [2024-10-31 22:14:40,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:40,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-31 22:14:40,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 15 letters. Loop has 10 letters. [2024-10-31 22:14:40,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:40,050 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:40,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:40,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:40,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:40,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:14:40,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:40,187 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:40,188 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-10-31 22:14:40,188 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:40,249 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 174 states and 230 transitions. Complement of second has 28 states. [2024-10-31 22:14:40,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:40,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2024-10-31 22:14:40,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 15 letters. Loop has 10 letters. [2024-10-31 22:14:40,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:40,251 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:40,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:40,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:40,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:40,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:14:40,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:40,397 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-10-31 22:14:40,398 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:40,507 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,508 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,546 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,546 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,547 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,547 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,598 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,598 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,607 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,608 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,608 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,608 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:40,609 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:40,609 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,623 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,623 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,628 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,629 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,631 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,631 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,641 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,642 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,648 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,649 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,649 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,649 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,652 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,652 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,652 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,653 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,653 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:40,655 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1222 states and 2113 transitions. Complement of second has 244 states 16 powerset states228 rank states. The highest rank that occured is 9 [2024-10-31 22:14:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:40,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:40,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 41 transitions. [2024-10-31 22:14:40,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 15 letters. Loop has 10 letters. [2024-10-31 22:14:40,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:40,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 25 letters. Loop has 10 letters. [2024-10-31 22:14:40,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:40,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 15 letters. Loop has 20 letters. [2024-10-31 22:14:40,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:40,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1222 states and 2113 transitions. [2024-10-31 22:14:40,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2024-10-31 22:14:40,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1222 states to 701 states and 1261 transitions. [2024-10-31 22:14:40,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-10-31 22:14:40,695 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 258 [2024-10-31 22:14:40,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 701 states and 1261 transitions. [2024-10-31 22:14:40,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:40,695 INFO L218 hiAutomatonCegarLoop]: Abstraction has 701 states and 1261 transitions. [2024-10-31 22:14:40,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states and 1261 transitions. [2024-10-31 22:14:40,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 179. [2024-10-31 22:14:40,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 179 states have (on average 1.8603351955307263) internal successors, (333), 178 states have internal predecessors, (333), 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) [2024-10-31 22:14:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 333 transitions. [2024-10-31 22:14:40,735 INFO L240 hiAutomatonCegarLoop]: Abstraction has 179 states and 333 transitions. [2024-10-31 22:14:40,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:40,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:14:40,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:40,736 INFO L87 Difference]: Start difference. First operand 179 states and 333 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-10-31 22:14:40,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:40,757 INFO L93 Difference]: Finished difference Result 201 states and 351 transitions. [2024-10-31 22:14:40,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 351 transitions. [2024-10-31 22:14:40,759 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2024-10-31 22:14:40,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 188 states and 321 transitions. [2024-10-31 22:14:40,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-10-31 22:14:40,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2024-10-31 22:14:40,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 321 transitions. [2024-10-31 22:14:40,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:40,761 INFO L218 hiAutomatonCegarLoop]: Abstraction has 188 states and 321 transitions. [2024-10-31 22:14:40,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 321 transitions. [2024-10-31 22:14:40,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 171. [2024-10-31 22:14:40,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.736842105263158) internal successors, (297), 170 states have internal predecessors, (297), 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) [2024-10-31 22:14:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 297 transitions. [2024-10-31 22:14:40,769 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171 states and 297 transitions. [2024-10-31 22:14:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:14:40,770 INFO L425 stractBuchiCegarLoop]: Abstraction has 171 states and 297 transitions. [2024-10-31 22:14:40,770 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:14:40,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 297 transitions. [2024-10-31 22:14:40,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-10-31 22:14:40,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:40,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:40,772 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 3, 2, 1, 1] [2024-10-31 22:14:40,772 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 2, 2] [2024-10-31 22:14:40,772 INFO L745 eck$LassoCheckResult]: Stem: 3590#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3591#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 3661#L12-2 assume !!(main_~c~0#1 > 0); 3662#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3655#L12-2 assume !!(main_~c~0#1 > 0); 3651#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3649#L12-2 assume !!(main_~c~0#1 > 0); 3647#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3645#L12-2 assume !!(main_~c~0#1 > 0); 3643#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3641#L12-2 assume !!(main_~c~0#1 > 0); 3642#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3632#L12-2 assume !!(main_~c~0#1 > 0); 3604#L12 [2024-10-31 22:14:40,772 INFO L747 eck$LassoCheckResult]: Loop: 3604#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3603#L12-2 assume !!(main_~c~0#1 > 0); 3611#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3608#L12-2 assume !!(main_~c~0#1 > 0); 3606#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3597#L12-2 assume !!(main_~c~0#1 > 0); 3599#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3600#L12-2 assume !!(main_~c~0#1 > 0); 3604#L12 [2024-10-31 22:14:40,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:40,773 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 10 times [2024-10-31 22:14:40,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:40,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983759348] [2024-10-31 22:14:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:40,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:40,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:40,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:40,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:40,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1593853071, now seen corresponding path program 4 times [2024-10-31 22:14:40,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:40,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539834995] [2024-10-31 22:14:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:40,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:40,850 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:14:40,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:40,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539834995] [2024-10-31 22:14:40,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539834995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:40,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:40,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:14:40,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8335216] [2024-10-31 22:14:40,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:40,851 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:14:40,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:40,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:40,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:14:40,852 INFO L87 Difference]: Start difference. First operand 171 states and 297 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:40,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:40,864 INFO L93 Difference]: Finished difference Result 155 states and 226 transitions. [2024-10-31 22:14:40,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 226 transitions. [2024-10-31 22:14:40,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-10-31 22:14:40,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 54 states and 69 transitions. [2024-10-31 22:14:40,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:14:40,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-31 22:14:40,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 69 transitions. [2024-10-31 22:14:40,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:14:40,867 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 69 transitions. [2024-10-31 22:14:40,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 69 transitions. [2024-10-31 22:14:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 43. [2024-10-31 22:14:40,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 42 states have internal predecessors, (57), 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) [2024-10-31 22:14:40,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2024-10-31 22:14:40,869 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 57 transitions. [2024-10-31 22:14:40,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:14:40,870 INFO L425 stractBuchiCegarLoop]: Abstraction has 43 states and 57 transitions. [2024-10-31 22:14:40,870 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 22:14:40,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 57 transitions. [2024-10-31 22:14:40,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-10-31 22:14:40,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:40,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:40,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2024-10-31 22:14:40,872 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 6, 4] [2024-10-31 22:14:40,872 INFO L745 eck$LassoCheckResult]: Stem: 3924#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3925#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 3922#L12-2 assume !!(main_~c~0#1 > 0); 3923#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3952#L12-2 assume !!(main_~c~0#1 > 0); 3950#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3951#L12-2 assume !!(main_~c~0#1 > 0); 3921#L12 [2024-10-31 22:14:40,872 INFO L747 eck$LassoCheckResult]: Loop: 3921#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3927#L12-2 assume !!(main_~c~0#1 > 0); 3947#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3946#L12-2 assume !!(main_~c~0#1 > 0); 3945#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3944#L12-2 assume !!(main_~c~0#1 > 0); 3943#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3942#L12-2 assume !!(main_~c~0#1 > 0); 3941#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3939#L12-2 assume !!(main_~c~0#1 > 0); 3936#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3938#L12-2 assume !!(main_~c~0#1 > 0); 3937#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3935#L12-2 assume !!(main_~c~0#1 > 0); 3931#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3932#L12-2 assume !!(main_~c~0#1 > 0); 3934#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3933#L12-2 assume !!(main_~c~0#1 > 0); 3930#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3919#L12-2 assume !!(main_~c~0#1 > 0); 3921#L12 [2024-10-31 22:14:40,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 2 times [2024-10-31 22:14:40,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:40,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800353656] [2024-10-31 22:14:40,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:40,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:40,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:40,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:40,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash -860275429, now seen corresponding path program 5 times [2024-10-31 22:14:40,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:40,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53844554] [2024-10-31 22:14:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:40,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:40,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:40,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:40,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:40,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1172307576, now seen corresponding path program 11 times [2024-10-31 22:14:40,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:40,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088685990] [2024-10-31 22:14:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:40,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:41,105 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:14:41,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:41,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088685990] [2024-10-31 22:14:41,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088685990] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:41,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511851234] [2024-10-31 22:14:41,109 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:14:41,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:41,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:41,112 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:41,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-10-31 22:14:41,164 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-10-31 22:14:41,165 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:41,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:14:41,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:14:41,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-31 22:14:41,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511851234] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:41,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:41,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-10-31 22:14:41,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763991800] [2024-10-31 22:14:41,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:41,650 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:41,650 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:41,650 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:41,651 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:41,651 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:14:41,651 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:41,651 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:41,651 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:41,651 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration9_Loop [2024-10-31 22:14:41,651 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:41,651 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:41,652 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:41,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:41,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:41,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:41,741 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:41,741 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:14:41,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:41,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:41,743 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:41,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-31 22:14:41,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:41,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:41,775 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:41,776 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:14:41,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:41,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:41,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:41,798 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:41,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-31 22:14:41,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:41,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:41,829 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:14:41,830 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:14:41,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:41,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:41,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:41,852 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:41,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-10-31 22:14:41,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:14:41,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:41,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:41,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:41,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:41,892 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:41,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:14:41,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-10-31 22:14:41,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:14:41,940 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:14:41,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:41,944 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:14:41,944 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:14:41,944 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:14:41,944 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:14:41,944 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:14:41,944 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:41,944 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:14:41,944 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:14:41,944 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration9_Loop [2024-10-31 22:14:41,945 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:14:41,945 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:14:41,945 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:41,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:41,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:41,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:14:42,027 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:14:42,027 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:14:42,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:42,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:42,030 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:42,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-10-31 22:14:42,032 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 [2024-10-31 22:14:42,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:42,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:42,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:42,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:42,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:14:42,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:14:42,053 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:14:42,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:42,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:42,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:42,075 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:42,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-10-31 22:14:42,078 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 [2024-10-31 22:14:42,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:14:42,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:14:42,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:14:42,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:14:42,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:14:42,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:14:42,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:14:42,094 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:14:42,097 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:14:42,097 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:14:42,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:42,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:42,098 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:42,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-10-31 22:14:42,100 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:14:42,100 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:14:42,100 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:14:42,100 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2024-10-31 22:14:42,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2024-10-31 22:14:42,113 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:14:42,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:14:42,268 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-10-31 22:14:42,269 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:42,275 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 43 states and 57 transitions. Complement of second has 3 states. [2024-10-31 22:14:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:42,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-10-31 22:14:42,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2024-10-31 22:14:42,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:42,277 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:42,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,442 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:14:42,443 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-10-31 22:14:42,443 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:42,449 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 43 states and 57 transitions. Complement of second has 3 states. [2024-10-31 22:14:42,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:42,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-10-31 22:14:42,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2024-10-31 22:14:42,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:42,451 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:42,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:14:42,613 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 6 loop predicates [2024-10-31 22:14:42,614 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:42,634 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 62 states and 78 transitions. Complement of second has 4 states. [2024-10-31 22:14:42,635 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 [2024-10-31 22:14:42,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-10-31 22:14:42,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2024-10-31 22:14:42,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:42,636 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:42,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:14:42,806 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2024-10-31 22:14:42,806 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:42,826 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 57 transitions. cyclomatic complexity: 18. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 62 states and 78 transitions. Complement of second has 4 states. [2024-10-31 22:14:42,826 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 [2024-10-31 22:14:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-10-31 22:14:42,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2024-10-31 22:14:42,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:42,828 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:14:42,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:42,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:14:42,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:43,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:14:43,044 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-10-31 22:14:43,044 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:43,130 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,130 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,147 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,148 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,170 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,171 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,176 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,176 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,176 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,177 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,212 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,213 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,213 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,214 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,223 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,223 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,224 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,224 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,230 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,232 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,233 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,233 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,234 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,234 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,238 WARN L278 uchiComplementFKVNwa]: big7 [2024-10-31 22:14:43,240 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,240 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,241 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,241 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,241 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,241 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,246 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,246 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,247 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,247 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,247 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,252 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,253 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,253 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,259 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,259 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,259 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,263 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,264 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,264 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,265 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,267 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,268 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,268 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,268 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,269 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,269 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,273 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,273 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,274 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,275 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,276 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,277 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,279 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,279 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,279 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,280 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,283 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,283 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,284 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,286 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,291 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,292 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,292 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,295 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,296 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,297 WARN L278 uchiComplementFKVNwa]: big7 [2024-10-31 22:14:43,298 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:14:43,303 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,316 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,317 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,319 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,320 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,320 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,321 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,321 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,323 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,323 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,324 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:14:43,330 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 43 states and 57 transitions. cyclomatic complexity: 18 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) Result 2035 states and 3574 transitions. Complement of second has 430 states 13 powerset states417 rank states. The highest rank that occured is 9 [2024-10-31 22:14:43,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2024-10-31 22:14:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2024-10-31 22:14:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2024-10-31 22:14:43,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 20 letters. [2024-10-31 22:14:43,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:43,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 27 letters. Loop has 20 letters. [2024-10-31 22:14:43,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:43,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 40 letters. [2024-10-31 22:14:43,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:14:43,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2035 states and 3574 transitions. [2024-10-31 22:14:43,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:14:43,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2035 states to 0 states and 0 transitions. [2024-10-31 22:14:43,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:14:43,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:14:43,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:14:43,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:14:43,392 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:43,392 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:43,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:43,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-31 22:14:43,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2024-10-31 22:14:43,393 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 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) [2024-10-31 22:14:43,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:43,393 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-31 22:14:43,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-31 22:14:43,394 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:14:43,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:14:43,394 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:14:43,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:14:43,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:14:43,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:14:43,395 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:43,395 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:14:43,395 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:14:43,395 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-10-31 22:14:43,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:14:43,396 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:14:43,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:14:43,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:14:43 BoogieIcfgContainer [2024-10-31 22:14:43,404 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:14:43,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:14:43,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:14:43,405 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:14:43,406 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:32" (3/4) ... [2024-10-31 22:14:43,409 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:14:43,410 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:14:43,411 INFO L158 Benchmark]: Toolchain (without parser) took 11727.00ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 131.3MB in the beginning and 94.3MB in the end (delta: 37.1MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2024-10-31 22:14:43,411 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 102.8MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:14:43,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.26ms. Allocated memory is still 165.7MB. Free memory was 131.3MB in the beginning and 120.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:14:43,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.54ms. Allocated memory is still 165.7MB. Free memory was 120.0MB in the beginning and 118.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:14:43,412 INFO L158 Benchmark]: Boogie Preprocessor took 54.29ms. Allocated memory is still 165.7MB. Free memory was 118.7MB in the beginning and 117.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:14:43,412 INFO L158 Benchmark]: RCFGBuilder took 355.42ms. Allocated memory is still 165.7MB. Free memory was 117.0MB in the beginning and 108.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:14:43,412 INFO L158 Benchmark]: BuchiAutomizer took 11018.33ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 108.6MB in the beginning and 94.3MB in the end (delta: 14.4MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2024-10-31 22:14:43,412 INFO L158 Benchmark]: Witness Printer took 5.37ms. Allocated memory is still 199.2MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:14:43,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 102.8MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.26ms. Allocated memory is still 165.7MB. Free memory was 131.3MB in the beginning and 120.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.54ms. Allocated memory is still 165.7MB. Free memory was 120.0MB in the beginning and 118.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.29ms. Allocated memory is still 165.7MB. Free memory was 118.7MB in the beginning and 117.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.42ms. Allocated memory is still 165.7MB. Free memory was 117.0MB in the beginning and 108.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 11018.33ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 108.6MB in the beginning and 94.3MB in the end (delta: 14.4MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Witness Printer took 5.37ms. Allocated memory is still 199.2MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (5 trivial, 3 deterministic, 5 nondeterministic). One deterministic module has affine ranking function (211 + ((long) -2 * x)) and consists of 4 locations. One deterministic module has affine ranking function (211 + ((long) -2 * x)) and consists of 3 locations. One deterministic module has affine ranking function (201 + ((long) -2 * x)) and consists of 4 locations. One nondeterministic module has affine ranking function (211 + ((long) -2 * x)) and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function (221 + ((long) -2 * x)) and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 9 locations. One nondeterministic module has affine ranking function c and consists of 9 locations. 5 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.9s and 10 iterations. TraceHistogramMax:10. Analysis of lassos took 6.7s. Construction of modules took 0.3s. Büchi inclusion checks took 3.5s. Highest rank in rank-based complementation 9. Minimization of det autom 2. Minimization of nondet autom 11. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 571 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 1, 3, 0, 2]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 92/114 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 214 IncrementalHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 131 mSDtfsCounter, 214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT4 conc0 concLT3 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp97 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:14:43,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:43,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:43,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fee0418-5836-4ab9-bb0f-af5c53e59709/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE