./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:44:31,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:44:31,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 05:44:31,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:44:31,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:44:31,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:44:31,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:44:31,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:44:31,945 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:44:31,945 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:44:31,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:44:31,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:44:31,947 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:44:31,948 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 05:44:31,948 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 05:44:31,949 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 05:44:31,949 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 05:44:31,950 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 05:44:31,950 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 05:44:31,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:44:31,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 05:44:31,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:44:31,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:44:31,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 05:44:31,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 05:44:31,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 05:44:31,954 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:44:31,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:44:31,955 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 05:44:31,955 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:44:31,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:44:31,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:44:31,956 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:44:31,956 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:44:31,957 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 05:44:31,957 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_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c [2023-11-29 05:44:32,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:44:32,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:44:32,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:44:32,210 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:44:32,210 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:44:32,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2023-11-29 05:44:34,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:44:35,126 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:44:35,127 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2023-11-29 05:44:35,135 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/data/d81531686/8f6ff20d167846288c70653398757f5a/FLAG43d008848 [2023-11-29 05:44:35,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/data/d81531686/8f6ff20d167846288c70653398757f5a [2023-11-29 05:44:35,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:44:35,153 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:44:35,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:44:35,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:44:35,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:44:35,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc4dd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35, skipping insertion in model container [2023-11-29 05:44:35,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:44:35,319 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:44:35,325 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:44:35,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:44:35,351 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:44:35,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35 WrapperNode [2023-11-29 05:44:35,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:44:35,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:44:35,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:44:35,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:44:35,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,379 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-29 05:44:35,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:44:35,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:44:35,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:44:35,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:44:35,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,391 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,397 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 05:44:35,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,403 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:44:35,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:44:35,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:44:35,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:44:35,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (1/1) ... [2023-11-29 05:44:35,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:35,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:35,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:35,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 05:44:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:44:35,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:44:35,551 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:44:35,554 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:44:35,605 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:44:35,613 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:44:35,613 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:44:35,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:35 BoogieIcfgContainer [2023-11-29 05:44:35,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:44:35,615 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 05:44:35,615 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 05:44:35,618 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 05:44:35,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:44:35,619 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 05:44:35" (1/3) ... [2023-11-29 05:44:35,619 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f2162ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:44:35, skipping insertion in model container [2023-11-29 05:44:35,619 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:44:35,620 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:44:35" (2/3) ... [2023-11-29 05:44:35,620 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f2162ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:44:35, skipping insertion in model container [2023-11-29 05:44:35,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:44:35,620 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:35" (3/3) ... [2023-11-29 05:44:35,622 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthyIterative.c [2023-11-29 05:44:35,670 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 05:44:35,670 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 05:44:35,670 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 05:44:35,671 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 05:44:35,671 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 05:44:35,671 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 05:44:35,671 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 05:44:35,671 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 05:44:35,674 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) [2023-11-29 05:44:35,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:44:35,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:35,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:35,691 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:44:35,691 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:44:35,691 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 05:44:35,692 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) [2023-11-29 05:44:35,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:44:35,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:35,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:35,693 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:44:35,693 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:44:35,698 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 2#L12-2true [2023-11-29 05:44:35,699 INFO L750 eck$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 [2023-11-29 05:44:35,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:35,703 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 05:44:35,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:35,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022915408] [2023-11-29 05:44:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:35,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:35,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:35,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:35,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:35,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-29 05:44:35,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:35,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89501295] [2023-11-29 05:44:35,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:35,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:35,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:35,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:35,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:35,812 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-29 05:44:35,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:35,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878098851] [2023-11-29 05:44:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:35,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:35,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:35,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:35,948 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:35,949 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:35,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:35,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:35,949 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:44:35,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:35,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:35,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:35,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2023-11-29 05:44:35,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:35,950 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:35,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:35,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:35,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:35,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,063 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:36,064 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:44:36,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 05:44:36,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:36,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,105 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:36,105 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:44:36,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:36,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 05:44:36,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:36,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,137 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:36,137 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:44:36,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 05:44:36,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,143 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 05:44:36,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:36,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 05:44:36,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 05:44:36,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:36,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,193 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:36,193 INFO L440 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] [2023-11-29 05:44:36,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 05:44:36,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,198 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 05:44:36,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:36,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:36,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 05:44:36,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:36,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,253 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:44:36,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 05:44:36,257 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:36,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:36,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:36,258 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:36,258 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:44:36,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,258 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:36,259 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:36,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2023-11-29 05:44:36,259 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:36,259 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:36,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,336 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:36,341 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:44:36,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,344 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 05:44:36,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:36,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:36,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:36,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:36,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:36,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:44:36,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:44:36,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:36,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 05:44:36,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,377 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 05:44:36,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:36,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:36,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:36,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:36,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:36,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:44:36,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:44:36,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:36,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:36,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,405 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 05:44:36,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:36,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:36,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:36,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:36,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:36,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:36,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:36,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:36,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:36,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 05:44:36,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,426 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 05:44:36,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:36,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:36,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:36,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:36,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:36,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:36,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:36,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:36,443 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:44:36,445 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:44:36,446 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:44:36,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,479 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 05:44:36,481 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:44:36,481 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:44:36,481 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:44:36,481 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-11-29 05:44:36,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:36,488 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:44:36,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:36,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:36,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:36,541 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:36,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:36,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:36,571 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 05:44:36,572 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) [2023-11-29 05:44:36,601 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. [2023-11-29 05:44:36,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:36,607 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) [2023-11-29 05:44:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-29 05:44:36,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-29 05:44:36,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:36,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 05:44:36,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:36,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-29 05:44:36,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:36,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2023-11-29 05:44:36,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:44:36,615 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2023-11-29 05:44:36,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 05:44:36,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 05:44:36,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-29 05:44:36,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:36,617 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 05:44:36,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-29 05:44:36,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-29 05:44:36,633 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) [2023-11-29 05:44:36,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-29 05:44:36,634 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 05:44:36,635 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 05:44:36,635 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 05:44:36,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-29 05:44:36,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:44:36,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:36,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:36,636 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 05:44:36,636 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:44:36,636 INFO L748 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 [2023-11-29 05:44:36,636 INFO L750 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 [2023-11-29 05:44:36,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:36,637 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-29 05:44:36,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:36,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498547361] [2023-11-29 05:44:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:36,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:36,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:36,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:36,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:36,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-29 05:44:36,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:36,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474681245] [2023-11-29 05:44:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:36,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:36,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:36,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:36,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:36,660 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-29 05:44:36,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:36,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441736337] [2023-11-29 05:44:36,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:36,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:36,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:36,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:36,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441736337] [2023-11-29 05:44:36,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441736337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:36,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:44:36,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:44:36,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128959322] [2023-11-29 05:44:36,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:36,749 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:36,749 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:36,749 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:36,750 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:36,750 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:44:36,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:36,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:36,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2023-11-29 05:44:36,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:36,750 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:36,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,755 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,814 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:36,814 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:44:36,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,815 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 05:44:36,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:36,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:36,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:44:36,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:36,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,855 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 05:44:36,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:36,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,875 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:36,876 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:44:36,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 05:44:36,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,880 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 05:44:36,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:36,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 05:44:36,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,897 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 05:44:36,900 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:36,900 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,928 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:36,928 INFO L440 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] [2023-11-29 05:44:36,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:36,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,932 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 05:44:36,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:36,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 05:44:36,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:36,955 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:36,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 05:44:36,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:36,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:36,981 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:44:36,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:36,984 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:36,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:36,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:36,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:36,984 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:44:36,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:36,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:36,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:36,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2023-11-29 05:44:36,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:36,985 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:36,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:36,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,052 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:37,052 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:44:37,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,053 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 05:44:37,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:37,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:37,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:37,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:37,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:37,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:44:37,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:44:37,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:37,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:37,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,079 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 05:44:37,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 05:44:37,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:37,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:37,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:37,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:37,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:37,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:44:37,108 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:44:37,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:37,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 05:44:37,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,118 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 05:44:37,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:37,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:37,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:37,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:37,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:37,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:37,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:37,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:37,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:37,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 05:44:37,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,148 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 05:44:37,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:37,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:37,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:37,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:37,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:37,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:37,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:37,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:37,165 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:44:37,167 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:44:37,167 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:44:37,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,168 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 05:44:37,179 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:44:37,179 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:44:37,179 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:44:37,179 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-11-29 05:44:37,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-29 05:44:37,183 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:44:37,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,216 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:37,220 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 05:44:37,221 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) [2023-11-29 05:44:37,229 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. [2023-11-29 05:44:37,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:37,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-29 05:44:37,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 05:44:37,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:37,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-29 05:44:37,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:37,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-29 05:44:37,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:37,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-11-29 05:44:37,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:44:37,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-11-29 05:44:37,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-29 05:44:37,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-29 05:44:37,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-11-29 05:44:37,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:37,235 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-29 05:44:37,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-11-29 05:44:37,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-29 05:44:37,236 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) [2023-11-29 05:44:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-11-29 05:44:37,237 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-29 05:44:37,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:37,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:44:37,241 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) [2023-11-29 05:44:37,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:37,255 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-29 05:44:37,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-29 05:44:37,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:44:37,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2023-11-29 05:44:37,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-29 05:44:37,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-29 05:44:37,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2023-11-29 05:44:37,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:37,258 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-29 05:44:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2023-11-29 05:44:37,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-29 05:44:37,259 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) [2023-11-29 05:44:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2023-11-29 05:44:37,260 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-29 05:44:37,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:37,261 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-29 05:44:37,261 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 05:44:37,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2023-11-29 05:44:37,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 05:44:37,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:37,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:37,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2023-11-29 05:44:37,263 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:44:37,263 INFO L748 eck$LassoCheckResult]: Stem: 154#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 149#L12-2 assume !!(main_~c~0#1 > 0); 150#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 160#L12-2 assume !!(main_~c~0#1 > 0); 156#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 157#L12-2 assume !!(main_~c~0#1 > 0); 152#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 159#L12-2 [2023-11-29 05:44:37,263 INFO L750 eck$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 [2023-11-29 05:44:37,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:37,264 INFO L85 PathProgramCache]: Analyzing trace with hash 297591406, now seen corresponding path program 2 times [2023-11-29 05:44:37,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:37,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299489752] [2023-11-29 05:44:37,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:37,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:37,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:37,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:37,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:37,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-29 05:44:37,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:37,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540584901] [2023-11-29 05:44:37,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:37,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:37,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:37,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:37,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:37,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1777467309, now seen corresponding path program 3 times [2023-11-29 05:44:37,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:37,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809463978] [2023-11-29 05:44:37,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:37,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:44:37,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:37,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809463978] [2023-11-29 05:44:37,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809463978] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:37,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768974387] [2023-11-29 05:44:37,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:44:37,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:37,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,358 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 05:44:37,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:44:37,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:44:37,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:44:37,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:44:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:44:37,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768974387] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:44:37,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:44:37,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-11-29 05:44:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237386044] [2023-11-29 05:44:37,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:44:37,479 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:37,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:37,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:37,479 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:37,479 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:44:37,479 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:37,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:37,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2023-11-29 05:44:37,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:37,480 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:37,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,540 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:37,541 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:44:37,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,546 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-29 05:44:37,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:37,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:37,572 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:37,572 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:44:37,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-29 05:44:37,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,579 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-29 05:44:37,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:37,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:37,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-29 05:44:37,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,599 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-29 05:44:37,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:37,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:37,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:37,629 INFO L440 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] [2023-11-29 05:44:37,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:37,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,632 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-29 05:44:37,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:37,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:37,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-29 05:44:37,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,649 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-29 05:44:37,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:37,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:37,672 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:44:37,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-29 05:44:37,675 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:37,675 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:37,675 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:37,675 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:37,675 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:44:37,675 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,675 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:37,676 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:37,676 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2023-11-29 05:44:37,676 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:37,676 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:37,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,680 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,687 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:37,744 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:37,745 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:44:37,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,746 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-29 05:44:37,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:37,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:37,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:37,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:37,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:37,761 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:44:37,761 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:44:37,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:37,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-29 05:44:37,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,774 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-29 05:44:37,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:37,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:37,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:37,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:37,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:37,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:37,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:37,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:37,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:37,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-29 05:44:37,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,797 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-29 05:44:37,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:37,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:37,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:37,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:37,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:37,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:37,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:37,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:37,813 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:44:37,815 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:44:37,816 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:44:37,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:37,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:37,822 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:37,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-29 05:44:37,823 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:44:37,823 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:44:37,823 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:44:37,823 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-11-29 05:44:37,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-29 05:44:37,827 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:44:37,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,865 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:37,869 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 05:44:37,869 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) [2023-11-29 05:44:37,877 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. [2023-11-29 05:44:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:37,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-29 05:44:37,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-29 05:44:37,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:37,879 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:37,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,912 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:37,916 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 05:44:37,916 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) [2023-11-29 05:44:37,923 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. [2023-11-29 05:44:37,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:37,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-29 05:44:37,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-29 05:44:37,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:37,925 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:37,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:37,957 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:37,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:37,961 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 05:44:37,961 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) [2023-11-29 05:44:37,969 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. [2023-11-29 05:44:37,970 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 [2023-11-29 05:44:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:37,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-29 05:44:37,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-29 05:44:37,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:37,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-29 05:44:37,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:37,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-29 05:44:37,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:37,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2023-11-29 05:44:37,973 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 05:44:37,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2023-11-29 05:44:37,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 05:44:37,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-29 05:44:37,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-11-29 05:44:37,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:37,974 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-29 05:44:37,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-11-29 05:44:37,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2023-11-29 05:44:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-29 05:44:37,975 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-29 05:44:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:37,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:44:37,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:44:37,976 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) [2023-11-29 05:44:37,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:37,990 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2023-11-29 05:44:37,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-29 05:44:37,990 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-29 05:44:37,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2023-11-29 05:44:37,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-29 05:44:37,991 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-29 05:44:37,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-11-29 05:44:37,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:37,991 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-29 05:44:37,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-11-29 05:44:37,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2023-11-29 05:44:37,992 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) [2023-11-29 05:44:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-29 05:44:37,993 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-29 05:44:37,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:44:37,994 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-29 05:44:37,994 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 05:44:37,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-29 05:44:37,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-29 05:44:37,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:37,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:37,995 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:44:37,995 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-29 05:44:37,995 INFO L748 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 [2023-11-29 05:44:37,995 INFO L750 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 [2023-11-29 05:44:37,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:37,996 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-29 05:44:37,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:37,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377150533] [2023-11-29 05:44:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:37,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:37,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1266953, now seen corresponding path program 1 times [2023-11-29 05:44:38,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:38,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494759326] [2023-11-29 05:44:38,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:38,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,011 INFO L85 PathProgramCache]: Analyzing trace with hash 889694155, now seen corresponding path program 4 times [2023-11-29 05:44:38,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:38,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692535233] [2023-11-29 05:44:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:38,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,069 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:38,069 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:38,069 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:38,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:38,069 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:44:38,069 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,069 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:38,070 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:38,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2023-11-29 05:44:38,070 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:38,070 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:38,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,128 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:38,128 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:44:38,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,129 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-29 05:44:38,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:38,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:38,150 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:38,150 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 05:44:38,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:38,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,153 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-29 05:44:38,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:38,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:38,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-29 05:44:38,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,170 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-29 05:44:38,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:38,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:38,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-29 05:44:38,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-29 05:44:38,203 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:44:38,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-29 05:44:38,206 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:38,206 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:38,206 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:38,206 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:38,206 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:44:38,206 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,206 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:38,206 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:38,206 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2023-11-29 05:44:38,207 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:38,207 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:38,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,269 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:38,269 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:44:38,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,270 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-29 05:44:38,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:38,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:38,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:38,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:38,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:38,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:38,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:38,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:38,289 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:44:38,291 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:44:38,292 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:44:38,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,293 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-29 05:44:38,295 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:44:38,295 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:44:38,295 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:44:38,295 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 201 Supporting invariants [] [2023-11-29 05:44:38,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:38,298 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:44:38,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:38,349 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 05:44:38,349 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) [2023-11-29 05:44:38,357 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. [2023-11-29 05:44:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:38,358 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) [2023-11-29 05:44:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-11-29 05:44:38,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-29 05:44:38,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,358 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:38,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:38,403 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 05:44:38,403 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) [2023-11-29 05:44:38,420 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. [2023-11-29 05:44:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:38,421 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) [2023-11-29 05:44:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-11-29 05:44:38,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-29 05:44:38,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-29 05:44:38,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-29 05:44:38,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-29 05:44:38,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 05:44:38,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2023-11-29 05:44:38,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 05:44:38,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 05:44:38,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-11-29 05:44:38,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:38,424 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-11-29 05:44:38,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-11-29 05:44:38,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-11-29 05:44:38,426 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) [2023-11-29 05:44:38,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-11-29 05:44:38,426 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-29 05:44:38,426 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-29 05:44:38,426 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 05:44:38,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2023-11-29 05:44:38,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 05:44:38,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:38,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:38,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-29 05:44:38,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:44:38,428 INFO L748 eck$LassoCheckResult]: Stem: 522#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 523#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 519#L12-2 assume !!(main_~c~0#1 > 0); 520#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 526#L12-2 assume !!(main_~c~0#1 > 0); 529#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 532#L12-2 assume !!(main_~c~0#1 > 0); 531#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 528#L12-2 assume !!(main_~c~0#1 > 0); 524#L12 [2023-11-29 05:44:38,428 INFO L750 eck$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 [2023-11-29 05:44:38,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,428 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 5 times [2023-11-29 05:44:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:38,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454687695] [2023-11-29 05:44:38,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:38,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-11-29 05:44:38,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:38,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34630091] [2023-11-29 05:44:38,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:38,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,447 INFO L85 PathProgramCache]: Analyzing trace with hash 790346520, now seen corresponding path program 6 times [2023-11-29 05:44:38,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:38,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847077177] [2023-11-29 05:44:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:38,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,481 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:38,482 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:38,482 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:38,482 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:38,482 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:44:38,482 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:38,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:38,482 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2023-11-29 05:44:38,482 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:38,482 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:38,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,495 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,536 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:38,536 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:44:38,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,538 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-29 05:44:38,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:38,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:38,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-11-29 05:44:38,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,558 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-29 05:44:38,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:38,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:38,584 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:44:38,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-11-29 05:44:38,587 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:38,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:38,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:38,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:38,587 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:44:38,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:38,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:38,587 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2023-11-29 05:44:38,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:38,587 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:38,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,630 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:38,630 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:44:38,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,631 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-29 05:44:38,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:38,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:38,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:38,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:38,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:38,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:38,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:38,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:38,646 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:44:38,648 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:44:38,648 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 05:44:38,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,650 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-29 05:44:38,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:44:38,651 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:44:38,652 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:44:38,652 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 05:44:38,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-29 05:44:38,654 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:44:38,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,682 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:38,697 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 05:44:38,697 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) [2023-11-29 05:44:38,701 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. [2023-11-29 05:44:38,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:38,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-29 05:44:38,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-29 05:44:38,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,702 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:38,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,729 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:38,745 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 05:44:38,745 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) [2023-11-29 05:44:38,749 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. [2023-11-29 05:44:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:38,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-29 05:44:38,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-29 05:44:38,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,750 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:38,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:38,782 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:44:38,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:38,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:38,797 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 05:44:38,797 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) [2023-11-29 05:44:38,805 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. [2023-11-29 05:44:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:38,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:44:38,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-29 05:44:38,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-29 05:44:38,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-29 05:44:38,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-29 05:44:38,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:38,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2023-11-29 05:44:38,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-29 05:44:38,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 25 transitions. [2023-11-29 05:44:38,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 05:44:38,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-29 05:44:38,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2023-11-29 05:44:38,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:38,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-11-29 05:44:38,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2023-11-29 05:44:38,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2023-11-29 05:44:38,810 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) [2023-11-29 05:44:38,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2023-11-29 05:44:38,811 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-29 05:44:38,811 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-29 05:44:38,811 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 05:44:38,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2023-11-29 05:44:38,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 05:44:38,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:38,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:38,812 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-29 05:44:38,812 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-29 05:44:38,812 INFO L748 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 [2023-11-29 05:44:38,812 INFO L750 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 [2023-11-29 05:44:38,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,813 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 7 times [2023-11-29 05:44:38,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:38,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792279437] [2023-11-29 05:44:38,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:38,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-11-29 05:44:38,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:38,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763316172] [2023-11-29 05:44:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:38,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 8 times [2023-11-29 05:44:38,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:38,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045180833] [2023-11-29 05:44:38,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:38,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:38,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:38,895 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:38,895 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:38,895 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:38,895 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:38,895 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:44:38,895 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,895 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:38,895 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:38,895 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2023-11-29 05:44:38,895 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:38,895 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:38,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:38,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:38,953 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:44:38,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,954 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-29 05:44:38,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:38,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:38,983 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:38,983 INFO L440 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: [] [2023-11-29 05:44:38,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-29 05:44:38,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:38,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:38,988 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:38,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-29 05:44:38,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:38,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:39,010 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:39,010 INFO L440 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: [] [2023-11-29 05:44:39,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-11-29 05:44:39,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,014 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-29 05:44:39,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:39,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:39,033 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:39,033 INFO L440 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: [] [2023-11-29 05:44:39,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-29 05:44:39,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,037 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-29 05:44:39,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:39,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:39,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-29 05:44:39,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,053 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-29 05:44:39,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:39,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:39,069 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:44:39,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:39,071 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:39,071 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:39,071 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:39,071 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:39,071 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:44:39,071 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,072 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:39,072 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:39,072 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2023-11-29 05:44:39,072 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:39,072 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:39,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:39,113 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:44:39,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,114 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-29 05:44:39,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:39,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:39,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:39,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:39,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:39,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:39,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:39,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:39,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:39,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-29 05:44:39,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,135 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-29 05:44:39,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:39,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:39,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:39,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:39,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:39,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:44:39,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:44:39,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:39,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-29 05:44:39,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,159 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-29 05:44:39,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:39,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:39,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:39,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:39,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:39,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:39,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:39,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:39,179 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:44:39,181 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:44:39,181 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:44:39,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,186 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-29 05:44:39,191 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:44:39,191 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:44:39,191 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:44:39,191 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 221 Supporting invariants [] [2023-11-29 05:44:39,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-29 05:44:39,195 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:44:39,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:39,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-11-29 05:44:39,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-11-29 05:44:39,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:39,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:39,267 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-29 05:44:39,268 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) [2023-11-29 05:44:39,288 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. [2023-11-29 05:44:39,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:39,291 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) [2023-11-29 05:44:39,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-29 05:44:39,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-29 05:44:39,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:39,291 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:39,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:39,356 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-29 05:44:39,356 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) [2023-11-29 05:44:39,380 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. [2023-11-29 05:44:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:39,381 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) [2023-11-29 05:44:39,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-29 05:44:39,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-29 05:44:39,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:39,382 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:39,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:39,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:39,445 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-29 05:44:39,446 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) [2023-11-29 05:44:39,462 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. [2023-11-29 05:44:39,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:39,463 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) [2023-11-29 05:44:39,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-29 05:44:39,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-29 05:44:39,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:39,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-29 05:44:39,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:39,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-29 05:44:39,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:39,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2023-11-29 05:44:39,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-29 05:44:39,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 40 transitions. [2023-11-29 05:44:39,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 05:44:39,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-29 05:44:39,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2023-11-29 05:44:39,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:39,467 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-11-29 05:44:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2023-11-29 05:44:39,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-11-29 05:44:39,469 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) [2023-11-29 05:44:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2023-11-29 05:44:39,470 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-29 05:44:39,470 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-29 05:44:39,470 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-29 05:44:39,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2023-11-29 05:44:39,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-29 05:44:39,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:39,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:39,473 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 3, 3, 1, 1] [2023-11-29 05:44:39,473 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 3, 2] [2023-11-29 05:44:39,473 INFO L748 eck$LassoCheckResult]: Stem: 988#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 989#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 990#L12-2 assume !!(main_~c~0#1 > 0); 999#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1000#L12-2 assume !!(main_~c~0#1 > 0); 996#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 995#L12-2 assume !!(main_~c~0#1 > 0); 994#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 984#L12-2 assume !!(main_~c~0#1 > 0); 985#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 992#L12-2 assume !!(main_~c~0#1 > 0); 1007#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1006#L12-2 assume !!(main_~c~0#1 > 0); 1004#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1003#L12-2 assume !!(main_~c~0#1 > 0); 1005#L12 [2023-11-29 05:44:39,473 INFO L750 eck$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 [2023-11-29 05:44:39,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:39,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1981740944, now seen corresponding path program 9 times [2023-11-29 05:44:39,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:39,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133747057] [2023-11-29 05:44:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:39,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:44:39,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:39,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133747057] [2023-11-29 05:44:39,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133747057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:39,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:44:39,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:44:39,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382961804] [2023-11-29 05:44:39,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:39,524 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 05:44:39,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:39,524 INFO L85 PathProgramCache]: Analyzing trace with hash 743859438, now seen corresponding path program 3 times [2023-11-29 05:44:39,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:39,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620554912] [2023-11-29 05:44:39,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:39,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:39,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:39,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:39,626 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:39,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:39,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:39,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:39,626 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:44:39,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:39,627 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:39,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2023-11-29 05:44:39,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:39,627 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:39,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,638 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,684 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:39,684 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:44:39,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,686 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-29 05:44:39,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:39,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:39,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2023-11-29 05:44:39,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,715 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-29 05:44:39,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:39,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:39,733 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:44:39,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-11-29 05:44:39,737 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:39,737 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:39,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:39,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:39,737 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:44:39,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,738 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:39,738 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:39,738 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2023-11-29 05:44:39,738 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:39,738 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:39,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:39,793 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:39,794 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:44:39,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,795 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-29 05:44:39,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:39,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:39,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:39,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:39,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:39,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:39,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:39,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:39,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:44:39,815 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 05:44:39,815 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:44:39,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:39,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:39,816 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:39,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-29 05:44:39,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:44:39,818 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:44:39,818 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:44:39,819 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 05:44:39,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-11-29 05:44:39,822 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:44:39,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:39,937 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 [2023-11-29 05:44:39,938 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) [2023-11-29 05:44:39,942 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. [2023-11-29 05:44:39,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:39,943 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) [2023-11-29 05:44:39,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-29 05:44:39,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-29 05:44:39,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:39,944 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:39,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:39,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:39,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:44:40,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:40,066 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 [2023-11-29 05:44:40,066 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) [2023-11-29 05:44:40,072 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. [2023-11-29 05:44:40,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:40,073 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) [2023-11-29 05:44:40,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-29 05:44:40,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-29 05:44:40,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:40,073 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:40,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:40,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:44:40,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:40,196 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 [2023-11-29 05:44:40,196 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) [2023-11-29 05:44:40,213 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. [2023-11-29 05:44:40,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:40,214 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) [2023-11-29 05:44:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-29 05:44:40,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-29 05:44:40,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:40,215 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:40,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:40,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-29 05:44:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:40,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:44:40,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:40,329 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:40,330 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 [2023-11-29 05:44:40,330 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) [2023-11-29 05:44:40,375 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. [2023-11-29 05:44:40,375 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 [2023-11-29 05:44:40,376 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) [2023-11-29 05:44:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2023-11-29 05:44:40,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-29 05:44:40,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:40,377 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:40,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:40,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:44:40,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:40,495 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:44:40,496 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 [2023-11-29 05:44:40,497 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) [2023-11-29 05:44:40,571 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,572 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,602 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,603 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,603 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,603 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,639 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,640 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,649 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,649 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,650 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,650 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:40,650 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:40,651 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,665 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,665 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,670 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,670 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,673 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,673 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,684 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,684 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,691 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,692 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,692 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,692 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,695 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,695 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,696 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,697 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,697 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:40,699 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 [2023-11-29 05:44:40,700 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 [2023-11-29 05:44:40,700 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) [2023-11-29 05:44:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 41 transitions. [2023-11-29 05:44:40,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 15 letters. Loop has 10 letters. [2023-11-29 05:44:40,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:40,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 25 letters. Loop has 10 letters. [2023-11-29 05:44:40,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:40,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 41 transitions. Stem has 15 letters. Loop has 20 letters. [2023-11-29 05:44:40,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:40,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1222 states and 2113 transitions. [2023-11-29 05:44:40,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2023-11-29 05:44:40,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1222 states to 701 states and 1261 transitions. [2023-11-29 05:44:40,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2023-11-29 05:44:40,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 258 [2023-11-29 05:44:40,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 701 states and 1261 transitions. [2023-11-29 05:44:40,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:40,739 INFO L218 hiAutomatonCegarLoop]: Abstraction has 701 states and 1261 transitions. [2023-11-29 05:44:40,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states and 1261 transitions. [2023-11-29 05:44:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 179. [2023-11-29 05:44:40,760 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) [2023-11-29 05:44:40,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 333 transitions. [2023-11-29 05:44:40,763 INFO L240 hiAutomatonCegarLoop]: Abstraction has 179 states and 333 transitions. [2023-11-29 05:44:40,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:40,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:44:40,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:44:40,764 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) [2023-11-29 05:44:40,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:40,781 INFO L93 Difference]: Finished difference Result 201 states and 351 transitions. [2023-11-29 05:44:40,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 351 transitions. [2023-11-29 05:44:40,783 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2023-11-29 05:44:40,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 188 states and 321 transitions. [2023-11-29 05:44:40,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2023-11-29 05:44:40,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2023-11-29 05:44:40,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 321 transitions. [2023-11-29 05:44:40,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:40,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 188 states and 321 transitions. [2023-11-29 05:44:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 321 transitions. [2023-11-29 05:44:40,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 171. [2023-11-29 05:44:40,793 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) [2023-11-29 05:44:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 297 transitions. [2023-11-29 05:44:40,795 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171 states and 297 transitions. [2023-11-29 05:44:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:44:40,796 INFO L428 stractBuchiCegarLoop]: Abstraction has 171 states and 297 transitions. [2023-11-29 05:44:40,796 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-29 05:44:40,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 297 transitions. [2023-11-29 05:44:40,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2023-11-29 05:44:40,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:40,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:40,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 3, 2, 1, 1] [2023-11-29 05:44:40,798 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 2, 2] [2023-11-29 05:44:40,799 INFO L748 eck$LassoCheckResult]: Stem: 3590#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3591#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 3661#L12-2 assume !!(main_~c~0#1 > 0); 3662#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3655#L12-2 assume !!(main_~c~0#1 > 0); 3651#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3649#L12-2 assume !!(main_~c~0#1 > 0); 3647#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3645#L12-2 assume !!(main_~c~0#1 > 0); 3643#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 3641#L12-2 assume !!(main_~c~0#1 > 0); 3642#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3632#L12-2 assume !!(main_~c~0#1 > 0); 3604#L12 [2023-11-29 05:44:40,799 INFO L750 eck$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 [2023-11-29 05:44:40,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:40,799 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 10 times [2023-11-29 05:44:40,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:40,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898601445] [2023-11-29 05:44:40,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:40,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:40,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:40,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:40,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:40,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1593853071, now seen corresponding path program 4 times [2023-11-29 05:44:40,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:40,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570765176] [2023-11-29 05:44:40,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:44:40,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:40,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570765176] [2023-11-29 05:44:40,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570765176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:44:40,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:44:40,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:44:40,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187680880] [2023-11-29 05:44:40,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:44:40,837 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 05:44:40,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:40,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:44:40,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:44:40,838 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) [2023-11-29 05:44:40,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:40,847 INFO L93 Difference]: Finished difference Result 155 states and 226 transitions. [2023-11-29 05:44:40,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 226 transitions. [2023-11-29 05:44:40,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2023-11-29 05:44:40,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 54 states and 69 transitions. [2023-11-29 05:44:40,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 05:44:40,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-29 05:44:40,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 69 transitions. [2023-11-29 05:44:40,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:44:40,850 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 69 transitions. [2023-11-29 05:44:40,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 69 transitions. [2023-11-29 05:44:40,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 43. [2023-11-29 05:44:40,851 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) [2023-11-29 05:44:40,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2023-11-29 05:44:40,852 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 57 transitions. [2023-11-29 05:44:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:44:40,853 INFO L428 stractBuchiCegarLoop]: Abstraction has 43 states and 57 transitions. [2023-11-29 05:44:40,853 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-29 05:44:40,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 57 transitions. [2023-11-29 05:44:40,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2023-11-29 05:44:40,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:44:40,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:44:40,854 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2023-11-29 05:44:40,854 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 6, 4] [2023-11-29 05:44:40,854 INFO L748 eck$LassoCheckResult]: Stem: 3924#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3925#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 3922#L12-2 assume !!(main_~c~0#1 > 0); 3923#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3952#L12-2 assume !!(main_~c~0#1 > 0); 3950#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 3951#L12-2 assume !!(main_~c~0#1 > 0); 3921#L12 [2023-11-29 05:44:40,854 INFO L750 eck$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 [2023-11-29 05:44:40,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 2 times [2023-11-29 05:44:40,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:40,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325599560] [2023-11-29 05:44:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:40,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:40,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:40,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:40,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:40,862 INFO L85 PathProgramCache]: Analyzing trace with hash -860275429, now seen corresponding path program 5 times [2023-11-29 05:44:40,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:40,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896601928] [2023-11-29 05:44:40,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:40,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:44:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:44:40,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:44:40,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:40,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1172307576, now seen corresponding path program 11 times [2023-11-29 05:44:40,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:44:40,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062013056] [2023-11-29 05:44:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:44:40,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:44:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:44:40,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:44:40,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062013056] [2023-11-29 05:44:40,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062013056] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:44:40,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829003123] [2023-11-29 05:44:40,999 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:44:40,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:44:40,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:41,000 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:44:41,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 05:44:41,039 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-11-29 05:44:41,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:44:41,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:44:41,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:44:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:44:41,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829003123] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:44:41,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:44:41,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2023-11-29 05:44:41,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890489196] [2023-11-29 05:44:41,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:44:41,323 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:41,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:41,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:41,324 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:41,324 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:44:41,324 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,324 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:41,324 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:41,324 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration9_Loop [2023-11-29 05:44:41,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:41,324 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:41,325 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:41,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:41,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:41,332 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:41,379 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:41,379 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:44:41,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:41,380 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:41,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-29 05:44:41,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:41,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:41,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:41,408 INFO L440 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: [] [2023-11-29 05:44:41,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-11-29 05:44:41,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:41,412 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:41,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-29 05:44:41,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:41,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:41,431 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 05:44:41,431 INFO L440 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: [] [2023-11-29 05:44:41,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2023-11-29 05:44:41,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:41,434 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:41,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-29 05:44:41,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:44:41,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:41,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2023-11-29 05:44:41,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:41,452 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:41,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-29 05:44:41,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:44:41,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:44:41,474 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:44:41,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-29 05:44:41,476 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:44:41,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:44:41,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:44:41,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:44:41,477 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:44:41,477 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,477 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:44:41,477 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:44:41,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration9_Loop [2023-11-29 05:44:41,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:44:41,477 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:44:41,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:41,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:41,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:41,489 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:44:41,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:44:41,530 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:44:41,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:41,531 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:41,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-29 05:44:41,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:41,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:41,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:41,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:41,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:41,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 05:44:41,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 05:44:41,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 05:44:41,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-29 05:44:41,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:41,550 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:41,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-29 05:44:41,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:44:41,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:44:41,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:44:41,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:44:41,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:44:41,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:44:41,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:44:41,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:44:41,565 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:44:41,566 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 05:44:41,567 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:44:41,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:44:41,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:44:41,567 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:44:41,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-29 05:44:41,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:44:41,569 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:44:41,569 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:44:41,570 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2023-11-29 05:44:41,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-11-29 05:44:41,572 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:44:41,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:41,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:41,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:44:41,684 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 [2023-11-29 05:44:41,684 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) [2023-11-29 05:44:41,688 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. [2023-11-29 05:44:41,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:41,691 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) [2023-11-29 05:44:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-29 05:44:41,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-29 05:44:41,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:41,691 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:41,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:41,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:41,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:44:41,803 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 [2023-11-29 05:44:41,803 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) [2023-11-29 05:44:41,807 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. [2023-11-29 05:44:41,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:41,808 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) [2023-11-29 05:44:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-29 05:44:41,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-29 05:44:41,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:41,808 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:41,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:41,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:41,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-11-29 05:44:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:44:41,931 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 [2023-11-29 05:44:41,931 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) [2023-11-29 05:44:41,945 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. [2023-11-29 05:44:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:41,946 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) [2023-11-29 05:44:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-29 05:44:41,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-29 05:44:41,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:41,947 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:41,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:41,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:41,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:44:41,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:44:42,057 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 [2023-11-29 05:44:42,057 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) [2023-11-29 05:44:42,069 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. [2023-11-29 05:44:42,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 05:44:42,070 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) [2023-11-29 05:44:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-29 05:44:42,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-29 05:44:42,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:42,070 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 05:44:42,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:44:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:42,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:44:42,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:44:42,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:44:42,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:44:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:44:42,162 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 [2023-11-29 05:44:42,162 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) [2023-11-29 05:44:42,225 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,226 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,240 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,241 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,255 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,256 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,260 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,260 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,260 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,260 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,288 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,288 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,288 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,289 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,293 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,293 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,293 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,293 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,298 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,299 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,300 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,300 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,300 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,300 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,304 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-29 05:44:42,305 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,306 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,306 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,306 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,306 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,306 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,310 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,310 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,311 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,311 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,311 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,315 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,315 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,315 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,320 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,320 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,321 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,323 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,324 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,324 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,325 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,326 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,326 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,327 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,327 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,327 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,327 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,330 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,330 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,331 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,331 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,332 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,333 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,334 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,334 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,334 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,334 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,336 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,337 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,337 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,339 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,342 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,342 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,343 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,345 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,345 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,346 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-29 05:44:42,347 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-29 05:44:42,350 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,361 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,361 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,363 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,363 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,363 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,363 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,364 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,365 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,365 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,366 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-29 05:44:42,370 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 [2023-11-29 05:44:42,371 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 [2023-11-29 05:44:42,371 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) [2023-11-29 05:44:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2023-11-29 05:44:42,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-29 05:44:42,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:42,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 27 letters. Loop has 20 letters. [2023-11-29 05:44:42,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:42,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 40 letters. [2023-11-29 05:44:42,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:44:42,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2035 states and 3574 transitions. [2023-11-29 05:44:42,446 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:44:42,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2035 states to 0 states and 0 transitions. [2023-11-29 05:44:42,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 05:44:42,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 05:44:42,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 05:44:42,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:44:42,447 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:44:42,447 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:44:42,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:44:42,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 05:44:42,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:44:42,448 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) [2023-11-29 05:44:42,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:44:42,448 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-29 05:44:42,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-29 05:44:42,448 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:44:42,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:44:42,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 05:44:42,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 05:44:42,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 05:44:42,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:44:42,449 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:44:42,449 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:44:42,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:44:42,449 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:44:42,450 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-29 05:44:42,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:44:42,450 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:44:42,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 05:44:42,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 05:44:42 BoogieIcfgContainer [2023-11-29 05:44:42,457 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 05:44:42,458 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:44:42,458 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:44:42,458 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:44:42,458 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:44:35" (3/4) ... [2023-11-29 05:44:42,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:44:42,461 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:44:42,462 INFO L158 Benchmark]: Toolchain (without parser) took 7309.00ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 79.9MB in the beginning and 100.1MB in the end (delta: -20.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-11-29 05:44:42,462 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 81.3MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:44:42,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.53ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 70.6MB in the end (delta: 9.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 05:44:42,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.95ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 69.4MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:44:42,463 INFO L158 Benchmark]: Boogie Preprocessor took 24.63ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 67.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:44:42,463 INFO L158 Benchmark]: RCFGBuilder took 209.25ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 59.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:44:42,464 INFO L158 Benchmark]: BuchiAutomizer took 6842.21ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 59.6MB in the beginning and 100.1MB in the end (delta: -40.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:44:42,464 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 148.9MB. Free memory is still 100.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:44:42,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 81.3MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.53ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 70.6MB in the end (delta: 9.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.95ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 69.4MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.63ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 67.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 209.25ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 59.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6842.21ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 59.6MB in the beginning and 100.1MB in the end (delta: -40.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 148.9MB. Free memory is still 100.1MB. 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 + (-2 * x)) and consists of 4 locations. One deterministic module has affine ranking function (211 + (-2 * x)) and consists of 3 locations. One deterministic module has affine ranking function (201 + (-2 * x)) and consists of 4 locations. One nondeterministic module has affine ranking function (211 + (-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 + (-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 6.7s and 10 iterations. TraceHistogramMax:10. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 2.4s. 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, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 174 SdHoareTripleChecker+Invalid, 0.2s 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: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 05:44:42,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 05:44:42,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 05:44:42,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b2eb420-9928-48c8-9fd2-08f88a23c1dc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE