./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 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_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ --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 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:42:58,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:42:58,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 22:42:58,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:42:58,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:42:58,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:42:58,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:42:58,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:42:58,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:42:58,933 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:42:58,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:42:58,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:42:58,937 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:42:58,939 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 22:42:58,940 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 22:42:58,941 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 22:42:58,942 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 22:42:58,942 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 22:42:58,943 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 22:42:58,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:42:58,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 22:42:58,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:42:58,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:42:58,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 22:42:58,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 22:42:58,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 22:42:58,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:42:58,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:42:58,949 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 22:42:58,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:42:58,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:42:58,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:42:58,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:42:58,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:42:58,954 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 22:42:58,954 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_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 [2023-11-23 22:42:59,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:42:59,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:42:59,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:42:59,464 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:42:59,465 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:42:59,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-11-23 22:43:03,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:43:03,573 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:43:03,574 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-11-23 22:43:03,582 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/data/a929c6108/e9fa5d73f0574a00830e22f8ec7741e5/FLAG02554be0b [2023-11-23 22:43:03,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/data/a929c6108/e9fa5d73f0574a00830e22f8ec7741e5 [2023-11-23 22:43:03,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:43:03,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:43:03,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:43:03,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:43:03,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:43:03,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252e06f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03, skipping insertion in model container [2023-11-23 22:43:03,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:43:03,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:43:03,865 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:43:03,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:43:03,892 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:43:03,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03 WrapperNode [2023-11-23 22:43:03,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:43:03,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:43:03,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:43:03,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:43:03,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,932 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-23 22:43:03,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:43:03,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:43:03,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:43:03,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:43:03,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,950 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,958 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 22:43:03,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:43:03,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:43:03,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:43:03,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:43:03,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (1/1) ... [2023-11-23 22:43:03,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:03,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:04,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:04,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 22:43:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:43:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:43:04,146 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:43:04,149 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:43:04,212 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:43:04,227 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:43:04,231 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:43:04,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:04 BoogieIcfgContainer [2023-11-23 22:43:04,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:43:04,234 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 22:43:04,234 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 22:43:04,238 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 22:43:04,239 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:43:04,239 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:43:03" (1/3) ... [2023-11-23 22:43:04,241 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21a18620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:43:04, skipping insertion in model container [2023-11-23 22:43:04,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:43:04,241 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:03" (2/3) ... [2023-11-23 22:43:04,242 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21a18620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:43:04, skipping insertion in model container [2023-11-23 22:43:04,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:43:04,242 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:04" (3/3) ... [2023-11-23 22:43:04,244 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91_Iteration.c [2023-11-23 22:43:04,308 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 22:43:04,309 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 22:43:04,309 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 22:43:04,309 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 22:43:04,310 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 22:43:04,310 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 22:43:04,310 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 22:43:04,310 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 22:43:04,318 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) [2023-11-23 22:43:04,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 22:43:04,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:04,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:04,347 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:43:04,348 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 22:43:04,348 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 22:43:04,349 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) [2023-11-23 22:43:04,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 22:43:04,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:04,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:04,351 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:43:04,351 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 22:43:04,359 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L15-2true [2023-11-23 22:43:04,360 INFO L750 eck$LassoCheckResult]: Loop: 7#L15-2true assume !!(main_~c~0#1 > 0); 5#L15true assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 7#L15-2true [2023-11-23 22:43:04,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:04,366 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-23 22:43:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:04,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633064855] [2023-11-23 22:43:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:04,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:04,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:04,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:04,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:04,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-23 22:43:04,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:04,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388604079] [2023-11-23 22:43:04,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:04,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:04,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:04,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:04,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:04,561 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-23 22:43:04,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:04,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656558060] [2023-11-23 22:43:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:04,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:04,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:04,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:04,758 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:04,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:04,759 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:04,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:04,760 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:43:04,760 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:04,760 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:04,760 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:04,760 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2023-11-23 22:43:04,761 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:04,761 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:04,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:04,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:04,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:04,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:04,993 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:04,994 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:43:04,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:05,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:05,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 22:43:05,052 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:43:05,052 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: [] [2023-11-23 22:43:05,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-23 22:43:05,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 22:43:05,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:05,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:05,118 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:43:05,119 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: [] [2023-11-23 22:43:05,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,139 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 22:43:05,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:05,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:05,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 22:43:05,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:05,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:05,283 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:43:05,283 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] [2023-11-23 22:43:05,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,302 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 22:43:05,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:05,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:05,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,346 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-23 22:43:05,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:05,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:05,398 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:43:05,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,403 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:05,403 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:05,403 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:05,403 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:05,403 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:43:05,404 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,404 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:05,404 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:05,404 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2023-11-23 22:43:05,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:05,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:05,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:05,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:05,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:05,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:05,539 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:05,545 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:43:05,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,557 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,561 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 [2023-11-23 22:43:05,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-23 22:43:05,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:05,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:05,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:05,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:05,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:43:05,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:43:05,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:43:05,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,631 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-23 22:43:05,635 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 [2023-11-23 22:43:05,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:05,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:05,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:05,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:05,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:43:05,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:43:05,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:43:05,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,694 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-23 22:43:05,705 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 [2023-11-23 22:43:05,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:05,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:05,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:05,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:05,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:05,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:05,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:05,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:43:05,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,752 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-23 22:43:05,754 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 [2023-11-23 22:43:05,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:05,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:05,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:05,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:05,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:05,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:05,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:05,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:43:05,795 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:43:05,795 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:43:05,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:05,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:05,817 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:05,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-23 22:43:05,821 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:43:05,821 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:43:05,821 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:43:05,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2023-11-23 22:43:05,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:05,841 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:43:05,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:05,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:05,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:05,912 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:43:05,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:05,993 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 [2023-11-23 22:43:05,995 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) [2023-11-23 22:43:06,050 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. [2023-11-23 22:43:06,052 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 [2023-11-23 22:43:06,057 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) [2023-11-23 22:43:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-23 22:43:06,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-23 22:43:06,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:06,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-23 22:43:06,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:06,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-23 22:43:06,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:06,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2023-11-23 22:43:06,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 22:43:06,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2023-11-23 22:43:06,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-23 22:43:06,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-23 22:43:06,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-23 22:43:06,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:06,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-23 22:43:06,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-23 22:43:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-23 22:43:06,096 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) [2023-11-23 22:43:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-23 22:43:06,098 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-23 22:43:06,098 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-23 22:43:06,098 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 22:43:06,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-23 22:43:06,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 22:43:06,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:06,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:06,100 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-23 22:43:06,100 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 22:43:06,100 INFO L748 eck$LassoCheckResult]: Stem: 67#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 69#L15-2 assume !!(main_~c~0#1 > 0); 63#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 64#L15-2 [2023-11-23 22:43:06,100 INFO L750 eck$LassoCheckResult]: Loop: 64#L15-2 assume !!(main_~c~0#1 > 0); 70#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 64#L15-2 [2023-11-23 22:43:06,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:06,101 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-23 22:43:06,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:06,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576551542] [2023-11-23 22:43:06,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:06,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:06,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:06,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:06,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-23 22:43:06,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:06,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32354779] [2023-11-23 22:43:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:06,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:06,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:06,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:06,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-23 22:43:06,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:06,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167499504] [2023-11-23 22:43:06,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:06,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:06,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:06,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167499504] [2023-11-23 22:43:06,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167499504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:06,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:06,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:43:06,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019155713] [2023-11-23 22:43:06,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:06,286 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:06,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:06,287 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:06,287 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:06,287 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:43:06,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:06,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:06,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2023-11-23 22:43:06,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:06,288 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:06,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:06,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:06,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:06,310 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:06,380 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:06,380 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:43:06,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,382 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:06,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:06,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-23 22:43:06,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:43:06,424 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: [] [2023-11-23 22:43:06,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:06,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,455 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-23 22:43:06,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:06,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:06,496 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:43:06,497 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: [] [2023-11-23 22:43:06,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-23 22:43:06,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,521 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:06,527 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:06,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-23 22:43:06,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:06,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,587 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:06,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:06,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-23 22:43:06,649 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:43:06,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:06,660 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:06,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:06,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:06,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:06,660 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:43:06,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:06,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:06,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2023-11-23 22:43:06,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:06,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:06,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:06,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:06,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:06,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:06,744 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:06,744 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:43:06,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,746 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,749 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 [2023-11-23 22:43:06,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-23 22:43:06,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:06,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:06,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:06,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:06,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:43:06,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:43:06,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:43:06,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:06,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,817 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,826 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 [2023-11-23 22:43:06,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-23 22:43:06,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:06,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:06,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:06,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:06,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:43:06,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:43:06,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:43:06,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:06,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,890 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,901 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 [2023-11-23 22:43:06,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-23 22:43:06,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:06,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:06,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:06,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:06,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:06,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:06,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:06,941 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:43:06,957 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:43:06,958 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:43:06,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:06,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:06,964 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:06,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-23 22:43:06,986 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:43:06,987 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:43:06,987 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:43:06,987 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2023-11-23 22:43:07,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:07,017 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:43:07,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:07,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:07,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:07,083 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:43:07,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:07,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:07,091 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 [2023-11-23 22:43:07,092 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) [2023-11-23 22:43:07,108 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. [2023-11-23 22:43:07,108 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 [2023-11-23 22:43:07,110 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) [2023-11-23 22:43:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-23 22:43:07,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-23 22:43:07,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:07,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-23 22:43:07,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:07,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-23 22:43:07,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:07,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-11-23 22:43:07,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 22:43:07,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-11-23 22:43:07,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-23 22:43:07,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-23 22:43:07,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-11-23 22:43:07,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:07,119 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-23 22:43:07,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-11-23 22:43:07,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 22:43:07,123 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) [2023-11-23 22:43:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-11-23 22:43:07,125 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-23 22:43:07,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:07,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:43:07,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:43:07,129 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) [2023-11-23 22:43:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:07,157 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-23 22:43:07,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-23 22:43:07,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 22:43:07,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2023-11-23 22:43:07,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-23 22:43:07,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-23 22:43:07,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2023-11-23 22:43:07,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:07,163 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-23 22:43:07,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2023-11-23 22:43:07,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-23 22:43:07,180 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) [2023-11-23 22:43:07,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2023-11-23 22:43:07,181 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-23 22:43:07,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:43:07,207 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-23 22:43:07,207 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 22:43:07,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2023-11-23 22:43:07,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 22:43:07,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:07,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:07,210 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2023-11-23 22:43:07,210 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 22:43:07,210 INFO L748 eck$LassoCheckResult]: Stem: 149#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 150#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 155#L15-2 assume !!(main_~c~0#1 > 0); 156#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 160#L15-2 assume !!(main_~c~0#1 > 0); 159#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 157#L15-2 assume !!(main_~c~0#1 > 0); 151#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 152#L15-2 [2023-11-23 22:43:07,210 INFO L750 eck$LassoCheckResult]: Loop: 152#L15-2 assume !!(main_~c~0#1 > 0); 158#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 152#L15-2 [2023-11-23 22:43:07,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:07,211 INFO L85 PathProgramCache]: Analyzing trace with hash 297591406, now seen corresponding path program 2 times [2023-11-23 22:43:07,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:07,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817537270] [2023-11-23 22:43:07,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:07,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:07,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:07,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:07,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:07,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-23 22:43:07,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:07,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479932412] [2023-11-23 22:43:07,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:07,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:07,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:07,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:07,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:07,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:07,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1777467309, now seen corresponding path program 3 times [2023-11-23 22:43:07,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:07,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882041494] [2023-11-23 22:43:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:07,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:07,456 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:43:07,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:07,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882041494] [2023-11-23 22:43:07,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882041494] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:43:07,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365266444] [2023-11-23 22:43:07,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 22:43:07,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:07,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:07,460 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:43:07,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 22:43:07,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-23 22:43:07,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:43:07,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:43:07,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:43:07,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:43:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:43:07,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365266444] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:43:07,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:43:07,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-11-23 22:43:07,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323263277] [2023-11-23 22:43:07,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:43:07,645 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:07,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:07,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:07,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:07,646 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:43:07,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:07,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:07,647 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:07,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2023-11-23 22:43:07,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:07,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:07,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:07,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:07,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:07,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:07,728 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:07,729 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:43:07,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:07,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:07,731 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:07,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:07,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:07,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-23 22:43:07,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:07,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:07,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:07,815 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:07,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:07,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:07,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-23 22:43:07,884 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:43:07,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:07,892 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:07,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:07,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:07,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:07,893 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:43:07,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:07,893 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:07,893 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:07,893 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2023-11-23 22:43:07,893 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:07,893 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:07,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:07,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:07,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:07,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,000 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:08,000 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:43:08,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:08,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:08,005 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:08,008 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 [2023-11-23 22:43:08,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-23 22:43:08,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:08,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:08,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:08,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:08,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:08,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:08,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:08,044 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:43:08,047 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:43:08,047 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:43:08,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:08,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:08,049 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:08,053 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:43:08,053 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:43:08,053 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:43:08,053 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2023-11-23 22:43:08,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-23 22:43:08,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:08,082 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:43:08,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:08,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,152 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:43:08,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:08,158 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 [2023-11-23 22:43:08,159 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) [2023-11-23 22:43:08,182 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. [2023-11-23 22:43:08,183 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 [2023-11-23 22:43:08,186 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) [2023-11-23 22:43:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-23 22:43:08,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-23 22:43:08,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:08,187 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:08,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:08,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,249 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:43:08,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:08,261 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 [2023-11-23 22:43:08,262 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) [2023-11-23 22:43:08,274 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. [2023-11-23 22:43:08,275 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 [2023-11-23 22:43:08,279 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) [2023-11-23 22:43:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-23 22:43:08,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-23 22:43:08,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:08,281 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:08,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:08,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,339 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:43:08,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:08,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:08,345 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 [2023-11-23 22:43:08,345 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) [2023-11-23 22:43:08,364 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. [2023-11-23 22:43:08,364 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 [2023-11-23 22:43:08,369 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) [2023-11-23 22:43:08,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-23 22:43:08,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-23 22:43:08,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:08,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-23 22:43:08,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:08,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-23 22:43:08,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:08,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2023-11-23 22:43:08,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 22:43:08,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2023-11-23 22:43:08,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-23 22:43:08,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-23 22:43:08,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-11-23 22:43:08,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:08,382 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-23 22:43:08,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-11-23 22:43:08,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2023-11-23 22:43:08,384 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) [2023-11-23 22:43:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-23 22:43:08,385 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-23 22:43:08,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:08,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:43:08,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:43:08,388 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) [2023-11-23 22:43:08,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:08,411 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2023-11-23 22:43:08,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-23 22:43:08,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-23 22:43:08,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2023-11-23 22:43:08,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-23 22:43:08,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-23 22:43:08,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-11-23 22:43:08,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:08,415 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-23 22:43:08,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-11-23 22:43:08,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2023-11-23 22:43:08,418 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) [2023-11-23 22:43:08,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-23 22:43:08,419 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-23 22:43:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:43:08,422 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-23 22:43:08,422 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-23 22:43:08,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-23 22:43:08,425 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-23 22:43:08,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:08,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:08,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:43:08,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-23 22:43:08,427 INFO L748 eck$LassoCheckResult]: Stem: 399#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 400#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 402#L15-2 [2023-11-23 22:43:08,427 INFO L750 eck$LassoCheckResult]: Loop: 402#L15-2 assume !!(main_~c~0#1 > 0); 405#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 408#L15-2 assume !!(main_~c~0#1 > 0); 401#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 402#L15-2 [2023-11-23 22:43:08,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,428 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-23 22:43:08,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:08,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409232547] [2023-11-23 22:43:08,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:08,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:08,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:08,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1266953, now seen corresponding path program 1 times [2023-11-23 22:43:08,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:08,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656190418] [2023-11-23 22:43:08,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:08,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:08,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:08,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:08,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash 889694155, now seen corresponding path program 4 times [2023-11-23 22:43:08,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:08,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613098907] [2023-11-23 22:43:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:08,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:08,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:08,605 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:08,605 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:08,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:08,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:08,605 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:43:08,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:08,606 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:08,606 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:08,606 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2023-11-23 22:43:08,606 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:08,606 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:08,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,709 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:08,709 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:43:08,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:08,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:08,710 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:08,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:08,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:08,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-23 22:43:08,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:08,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:08,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:08,770 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:08,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:08,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:08,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-23 22:43:08,796 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:43:08,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:08,821 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:08,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:08,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:08,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:08,822 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:43:08,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:08,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:08,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:08,822 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2023-11-23 22:43:08,822 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:08,822 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:08,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,836 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:08,918 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:08,919 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:43:08,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:08,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:08,920 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:08,925 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 [2023-11-23 22:43:08,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-23 22:43:08,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:08,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:08,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:08,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:08,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:08,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:08,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:08,956 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:43:08,969 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:43:08,969 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:43:08,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:08,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:08,972 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:08,977 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:43:08,977 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:43:08,977 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:43:08,978 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 201 Supporting invariants [] [2023-11-23 22:43:08,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-23 22:43:09,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-23 22:43:09,001 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:43:09,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:09,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:43:09,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:09,093 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 [2023-11-23 22:43:09,094 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) [2023-11-23 22:43:09,108 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. [2023-11-23 22:43:09,108 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 [2023-11-23 22:43:09,111 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) [2023-11-23 22:43:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-11-23 22:43:09,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-23 22:43:09,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:09,113 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:09,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:09,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:43:09,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:09,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:09,193 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 [2023-11-23 22:43:09,193 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) [2023-11-23 22:43:09,224 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. [2023-11-23 22:43:09,225 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 [2023-11-23 22:43:09,227 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) [2023-11-23 22:43:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-11-23 22:43:09,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-23 22:43:09,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:09,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-23 22:43:09,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:09,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-23 22:43:09,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:09,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-23 22:43:09,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 22:43:09,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2023-11-23 22:43:09,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-23 22:43:09,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-23 22:43:09,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-11-23 22:43:09,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:09,235 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-11-23 22:43:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-11-23 22:43:09,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-11-23 22:43:09,238 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) [2023-11-23 22:43:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-11-23 22:43:09,239 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-23 22:43:09,239 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-23 22:43:09,239 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-23 22:43:09,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2023-11-23 22:43:09,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 22:43:09,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:09,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:09,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-23 22:43:09,242 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 22:43:09,243 INFO L748 eck$LassoCheckResult]: Stem: 523#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 524#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 525#L15-2 assume !!(main_~c~0#1 > 0); 521#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 522#L15-2 assume !!(main_~c~0#1 > 0); 529#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 532#L15-2 assume !!(main_~c~0#1 > 0); 531#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 528#L15-2 assume !!(main_~c~0#1 > 0); 519#L15 [2023-11-23 22:43:09,244 INFO L750 eck$LassoCheckResult]: Loop: 519#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 520#L15-2 assume !!(main_~c~0#1 > 0); 519#L15 [2023-11-23 22:43:09,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 5 times [2023-11-23 22:43:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:09,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554544487] [2023-11-23 22:43:09,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:09,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:09,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:09,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:09,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-11-23 22:43:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:09,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150665037] [2023-11-23 22:43:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:09,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:09,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:09,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:09,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,304 INFO L85 PathProgramCache]: Analyzing trace with hash 790346520, now seen corresponding path program 6 times [2023-11-23 22:43:09,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:09,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981952464] [2023-11-23 22:43:09,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:09,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:09,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:09,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:09,375 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:09,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:09,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:09,376 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:09,376 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:43:09,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:09,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:09,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:09,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2023-11-23 22:43:09,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:09,377 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:09,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:09,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:09,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:09,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:09,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:09,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:09,508 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:09,509 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:43:09,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:09,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:09,510 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:09,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:09,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:09,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-23 22:43:09,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:09,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:09,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:09,578 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:09,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:09,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:09,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-23 22:43:09,680 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:43:09,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-23 22:43:09,684 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:09,684 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:09,684 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:09,684 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:09,684 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:43:09,684 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:09,685 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:09,685 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:09,685 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2023-11-23 22:43:09,685 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:09,685 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:09,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:09,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:09,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:09,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:09,765 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:09,766 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:43:09,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:09,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:09,767 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:09,773 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 [2023-11-23 22:43:09,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-23 22:43:09,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:09,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:09,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:09,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:09,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:09,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:09,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:09,812 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:43:09,814 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-23 22:43:09,814 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:43:09,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:09,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:09,816 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:09,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:43:09,818 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:43:09,818 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:43:09,819 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 [] [2023-11-23 22:43:09,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-23 22:43:09,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:09,846 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:43:09,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:09,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,897 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:43:09,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:09,912 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 [2023-11-23 22:43:09,912 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) [2023-11-23 22:43:09,919 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. [2023-11-23 22:43:09,919 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 [2023-11-23 22:43:09,920 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) [2023-11-23 22:43:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-23 22:43:09,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-23 22:43:09,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:09,921 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:09,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:09,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,974 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:43:09,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:09,985 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-23 22:43:09,985 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) [2023-11-23 22:43:09,990 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. [2023-11-23 22:43:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 22:43:09,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:09,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-23 22:43:09,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-23 22:43:09,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:09,992 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:10,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:10,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,039 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:43:10,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:10,054 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 [2023-11-23 22:43:10,054 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) [2023-11-23 22:43:10,081 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 21 states and 28 transitions. Complement of second has 4 states. [2023-11-23 22:43:10,082 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 [2023-11-23 22:43:10,083 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) [2023-11-23 22:43:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-23 22:43:10,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-23 22:43:10,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:10,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-23 22:43:10,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:10,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-23 22:43:10,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:10,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2023-11-23 22:43:10,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-23 22:43:10,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 24 transitions. [2023-11-23 22:43:10,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-23 22:43:10,092 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-11-23 22:43:10,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2023-11-23 22:43:10,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:10,093 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2023-11-23 22:43:10,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2023-11-23 22:43:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2023-11-23 22:43:10,096 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) [2023-11-23 22:43:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2023-11-23 22:43:10,097 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-23 22:43:10,097 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-23 22:43:10,097 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-23 22:43:10,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2023-11-23 22:43:10,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-23 22:43:10,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:10,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:10,100 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-23 22:43:10,100 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-23 22:43:10,100 INFO L748 eck$LassoCheckResult]: Stem: 712#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 713#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 714#L15-2 assume !!(main_~c~0#1 > 0); 715#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 722#L15-2 assume !!(main_~c~0#1 > 0); 721#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 720#L15-2 assume !!(main_~c~0#1 > 0); 718#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 719#L15-2 assume !!(main_~c~0#1 > 0); 709#L15 [2023-11-23 22:43:10,100 INFO L750 eck$LassoCheckResult]: Loop: 709#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 710#L15-2 assume !!(main_~c~0#1 > 0); 716#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 717#L15-2 assume !!(main_~c~0#1 > 0); 709#L15 [2023-11-23 22:43:10,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 7 times [2023-11-23 22:43:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027605370] [2023-11-23 22:43:10,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:10,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:10,127 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:10,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:10,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-11-23 22:43:10,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:10,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555053860] [2023-11-23 22:43:10,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:10,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:10,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:10,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:10,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,154 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 8 times [2023-11-23 22:43:10,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:10,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773254812] [2023-11-23 22:43:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:10,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:10,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:10,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:10,248 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:10,249 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:10,249 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:10,249 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:10,249 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:43:10,249 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:10,249 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:10,249 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:10,250 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2023-11-23 22:43:10,250 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:10,250 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:10,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:10,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:10,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:10,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:10,317 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:10,317 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:43:10,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:10,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:10,319 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:10,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-23 22:43:10,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:10,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:10,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:10,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:10,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:10,373 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:10,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-23 22:43:10,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:10,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:10,402 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:43:10,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:10,428 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:10,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:10,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:10,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:10,428 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:43:10,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:10,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:10,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:10,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2023-11-23 22:43:10,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:10,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:10,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:10,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:10,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:10,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:10,507 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:10,507 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:43:10,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:10,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:10,509 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:10,513 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 [2023-11-23 22:43:10,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-23 22:43:10,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:10,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:10,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:10,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:10,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:10,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:10,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:10,541 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:43:10,545 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:43:10,545 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:43:10,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:10,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:10,546 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:10,549 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:43:10,549 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:43:10,549 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:43:10,549 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 221 Supporting invariants [] [2023-11-23 22:43:10,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-23 22:43:10,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:10,572 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:43:10,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:10,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:43:10,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:10,656 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 [2023-11-23 22:43:10,657 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) [2023-11-23 22:43:10,683 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. [2023-11-23 22:43:10,684 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 [2023-11-23 22:43:10,685 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) [2023-11-23 22:43:10,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-23 22:43:10,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-23 22:43:10,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:10,686 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:10,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:10,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:43:10,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:10,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:10,766 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-23 22:43:10,766 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:10,794 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. [2023-11-23 22:43:10,795 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 [2023-11-23 22:43:10,796 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) [2023-11-23 22:43:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-23 22:43:10,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-23 22:43:10,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:10,797 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:10,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:10,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:43:10,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:10,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:10,894 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 [2023-11-23 22:43:10,894 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) [2023-11-23 22:43:10,919 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. [2023-11-23 22:43:10,920 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 [2023-11-23 22:43:10,921 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) [2023-11-23 22:43:10,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-23 22:43:10,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-23 22:43:10,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:10,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-23 22:43:10,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:10,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-23 22:43:10,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:10,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2023-11-23 22:43:10,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-23 22:43:10,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 40 transitions. [2023-11-23 22:43:10,929 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-23 22:43:10,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-23 22:43:10,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2023-11-23 22:43:10,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:10,929 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-11-23 22:43:10,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2023-11-23 22:43:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-11-23 22:43:10,938 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) [2023-11-23 22:43:10,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2023-11-23 22:43:10,939 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-23 22:43:10,939 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-23 22:43:10,940 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-23 22:43:10,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2023-11-23 22:43:10,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-23 22:43:10,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:10,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:10,943 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 3, 3, 1, 1] [2023-11-23 22:43:10,943 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 2, 1] [2023-11-23 22:43:10,943 INFO L748 eck$LassoCheckResult]: Stem: 983#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 984#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 985#L15-2 assume !!(main_~c~0#1 > 0); 995#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 996#L15-2 assume !!(main_~c~0#1 > 0); 993#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 991#L15-2 assume !!(main_~c~0#1 > 0); 990#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 986#L15-2 assume !!(main_~c~0#1 > 0); 987#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 981#L15-2 assume !!(main_~c~0#1 > 0); 1003#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1002#L15-2 assume !!(main_~c~0#1 > 0); 1001#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 999#L15-2 assume !!(main_~c~0#1 > 0); 980#L15 [2023-11-23 22:43:10,944 INFO L750 eck$LassoCheckResult]: Loop: 980#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 981#L15-2 assume !!(main_~c~0#1 > 0); 1003#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1002#L15-2 assume !!(main_~c~0#1 > 0); 1001#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 999#L15-2 assume !!(main_~c~0#1 > 0); 980#L15 [2023-11-23 22:43:10,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1981740944, now seen corresponding path program 9 times [2023-11-23 22:43:10,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:10,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736784050] [2023-11-23 22:43:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:10,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 22:43:11,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:11,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736784050] [2023-11-23 22:43:11,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736784050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:11,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:43:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366752462] [2023-11-23 22:43:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:11,029 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 22:43:11,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:11,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1298898678, now seen corresponding path program 3 times [2023-11-23 22:43:11,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:11,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093523123] [2023-11-23 22:43:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:11,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:11,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:11,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:11,107 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:11,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:11,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:11,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:11,108 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:43:11,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:11,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:11,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:11,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2023-11-23 22:43:11,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:11,108 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:11,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:11,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:11,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:11,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:11,185 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:11,185 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:43:11,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:11,187 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:11,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:11,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:11,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-23 22:43:11,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:11,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:11,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:11,239 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:11,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:11,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:11,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-23 22:43:11,574 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:43:11,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:11,578 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:11,579 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:11,579 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:11,579 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:11,579 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:43:11,579 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:11,579 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:11,579 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:11,579 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2023-11-23 22:43:11,579 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:11,579 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:11,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:11,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:11,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:11,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:11,651 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:11,651 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:43:11,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:11,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:11,653 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:11,662 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 [2023-11-23 22:43:11,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-23 22:43:11,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:11,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:11,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:11,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:11,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:11,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:11,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:11,696 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:43:11,699 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-23 22:43:11,699 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:43:11,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:11,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:11,704 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:11,709 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:43:11,709 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:43:11,709 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:43:11,709 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-23 22:43:11,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-23 22:43:11,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:11,735 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:43:11,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:11,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:43:11,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:11,869 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-23 22:43:11,869 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,876 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 3 states. [2023-11-23 22:43:11,877 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 [2023-11-23 22:43:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-23 22:43:11,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-23 22:43:11,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:11,879 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:11,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:11,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:43:11,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:12,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:12,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:12,041 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-23 22:43:12,041 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:12,053 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 3 states. [2023-11-23 22:43:12,055 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 [2023-11-23 22:43:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-23 22:43:12,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-23 22:43:12,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:12,056 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:12,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:12,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:12,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:43:12,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:12,163 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:12,164 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 4 loop predicates [2023-11-23 22:43:12,164 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,174 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 55 transitions. Complement of second has 4 states. [2023-11-23 22:43:12,175 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 [2023-11-23 22:43:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-23 22:43:12,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-23 22:43:12,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:12,177 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:12,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:12,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:43:12,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:12,280 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 4 loop predicates [2023-11-23 22:43:12,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,318 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 94 transitions. Complement of second has 12 states. [2023-11-23 22:43:12,318 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 [2023-11-23 22:43:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-23 22:43:12,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-23 22:43:12,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:12,320 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:12,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:12,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:43:12,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:12,439 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 4 loop predicates [2023-11-23 22:43:12,441 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,523 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:12,523 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:12,549 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:12,589 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:12,590 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:12,609 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:12,610 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:12,612 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 525 states and 880 transitions. Complement of second has 116 states 12 powerset states104 rank states. The highest rank that occured is 7 [2023-11-23 22:43:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-23 22:43:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2023-11-23 22:43:12,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-23 22:43:12,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:12,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 21 letters. Loop has 6 letters. [2023-11-23 22:43:12,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:12,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 15 letters. Loop has 12 letters. [2023-11-23 22:43:12,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:12,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 880 transitions. [2023-11-23 22:43:12,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2023-11-23 22:43:12,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 384 states and 664 transitions. [2023-11-23 22:43:12,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-23 22:43:12,641 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2023-11-23 22:43:12,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 384 states and 664 transitions. [2023-11-23 22:43:12,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:12,642 INFO L218 hiAutomatonCegarLoop]: Abstraction has 384 states and 664 transitions. [2023-11-23 22:43:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states and 664 transitions. [2023-11-23 22:43:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 99. [2023-11-23 22:43:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.6363636363636365) internal successors, (162), 98 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 162 transitions. [2023-11-23 22:43:12,660 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99 states and 162 transitions. [2023-11-23 22:43:12,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:12,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:43:12,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:43:12,662 INFO L87 Difference]: Start difference. First operand 99 states and 162 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) [2023-11-23 22:43:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:12,685 INFO L93 Difference]: Finished difference Result 122 states and 184 transitions. [2023-11-23 22:43:12,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122 states and 184 transitions. [2023-11-23 22:43:12,688 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2023-11-23 22:43:12,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122 states to 110 states and 166 transitions. [2023-11-23 22:43:12,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2023-11-23 22:43:12,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-23 22:43:12,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 166 transitions. [2023-11-23 22:43:12,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:12,692 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 166 transitions. [2023-11-23 22:43:12,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 166 transitions. [2023-11-23 22:43:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2023-11-23 22:43:12,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.5217391304347827) internal successors, (140), 91 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 140 transitions. [2023-11-23 22:43:12,714 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 140 transitions. [2023-11-23 22:43:12,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:43:12,715 INFO L428 stractBuchiCegarLoop]: Abstraction has 92 states and 140 transitions. [2023-11-23 22:43:12,715 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-23 22:43:12,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 140 transitions. [2023-11-23 22:43:12,716 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2023-11-23 22:43:12,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:12,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:12,718 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2023-11-23 22:43:12,718 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 2, 2] [2023-11-23 22:43:12,718 INFO L748 eck$LassoCheckResult]: Stem: 2413#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2414#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2465#L15-2 assume !!(main_~c~0#1 > 0); 2460#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2462#L15-2 assume !!(main_~c~0#1 > 0); 2432#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2429#L15-2 assume !!(main_~c~0#1 > 0); 2431#L15 [2023-11-23 22:43:12,718 INFO L750 eck$LassoCheckResult]: Loop: 2431#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2416#L15-2 assume !!(main_~c~0#1 > 0); 2417#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2455#L15-2 assume !!(main_~c~0#1 > 0); 2422#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2423#L15-2 assume !!(main_~c~0#1 > 0); 2439#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2437#L15-2 assume !!(main_~c~0#1 > 0); 2431#L15 [2023-11-23 22:43:12,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 2 times [2023-11-23 22:43:12,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:12,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289935957] [2023-11-23 22:43:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:12,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:12,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:12,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:12,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1593853071, now seen corresponding path program 4 times [2023-11-23 22:43:12,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:12,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887408491] [2023-11-23 22:43:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:12,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:43:12,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:12,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887408491] [2023-11-23 22:43:12,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887408491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:12,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:12,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:43:12,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27867482] [2023-11-23 22:43:12,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:12,782 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-23 22:43:12,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:12,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:43:12,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:43:12,783 INFO L87 Difference]: Start difference. First operand 92 states and 140 transitions. cyclomatic complexity: 55 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) [2023-11-23 22:43:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:12,797 INFO L93 Difference]: Finished difference Result 113 states and 154 transitions. [2023-11-23 22:43:12,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 154 transitions. [2023-11-23 22:43:12,799 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2023-11-23 22:43:12,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 93 states and 126 transitions. [2023-11-23 22:43:12,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-23 22:43:12,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2023-11-23 22:43:12,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 126 transitions. [2023-11-23 22:43:12,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:43:12,802 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93 states and 126 transitions. [2023-11-23 22:43:12,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 126 transitions. [2023-11-23 22:43:12,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 74. [2023-11-23 22:43:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 73 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2023-11-23 22:43:12,813 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 102 transitions. [2023-11-23 22:43:12,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:43:12,814 INFO L428 stractBuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2023-11-23 22:43:12,814 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-23 22:43:12,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2023-11-23 22:43:12,815 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2023-11-23 22:43:12,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:43:12,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:43:12,816 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2023-11-23 22:43:12,817 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 6, 4] [2023-11-23 22:43:12,817 INFO L748 eck$LassoCheckResult]: Stem: 2624#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2625#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2627#L15-2 assume !!(main_~c~0#1 > 0); 2687#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2659#L15-2 assume !!(main_~c~0#1 > 0); 2681#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2682#L15-2 assume !!(main_~c~0#1 > 0); 2621#L15 [2023-11-23 22:43:12,817 INFO L750 eck$LassoCheckResult]: Loop: 2621#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2622#L15-2 assume !!(main_~c~0#1 > 0); 2686#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2683#L15-2 assume !!(main_~c~0#1 > 0); 2680#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2679#L15-2 assume !!(main_~c~0#1 > 0); 2678#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2676#L15-2 assume !!(main_~c~0#1 > 0); 2675#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2674#L15-2 assume !!(main_~c~0#1 > 0); 2671#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2673#L15-2 assume !!(main_~c~0#1 > 0); 2672#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2670#L15-2 assume !!(main_~c~0#1 > 0); 2669#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2668#L15-2 assume !!(main_~c~0#1 > 0); 2667#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2666#L15-2 assume !!(main_~c~0#1 > 0); 2665#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2663#L15-2 assume !!(main_~c~0#1 > 0); 2621#L15 [2023-11-23 22:43:12,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 3 times [2023-11-23 22:43:12,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:12,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301706113] [2023-11-23 22:43:12,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:12,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:12,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:12,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:12,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,832 INFO L85 PathProgramCache]: Analyzing trace with hash -860275429, now seen corresponding path program 5 times [2023-11-23 22:43:12,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:12,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779225254] [2023-11-23 22:43:12,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:12,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:12,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:43:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:43:12,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:43:12,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1172307576, now seen corresponding path program 10 times [2023-11-23 22:43:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:12,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452706508] [2023-11-23 22:43:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 22:43:12,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:12,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452706508] [2023-11-23 22:43:12,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452706508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:43:12,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951734230] [2023-11-23 22:43:12,990 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 22:43:12,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:12,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:12,991 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:43:13,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-23 22:43:13,042 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 22:43:13,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 22:43:13,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:43:13,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:43:13,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:43:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 22:43:13,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951734230] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:43:13,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:43:13,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-11-23 22:43:13,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184529271] [2023-11-23 22:43:13,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:43:13,507 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:13,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:13,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:13,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:13,508 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:43:13,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:13,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:13,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:13,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration9_Loop [2023-11-23 22:43:13,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:13,508 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:13,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:13,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:13,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:13,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:13,581 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:13,581 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:43:13,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:13,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:13,583 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:13,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:13,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:13,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-23 22:43:13,616 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:43:13,616 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: [] [2023-11-23 22:43:13,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:13,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:13,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:13,644 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:13,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:43:13,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:13,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-23 22:43:13,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:13,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:13,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:13,704 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:13,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:43:13,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:43:13,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-23 22:43:13,779 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:43:13,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-23 22:43:13,784 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:43:13,784 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:43:13,784 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:43:13,784 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:43:13,784 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:43:13,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:13,784 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:43:13,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:43:13,784 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration9_Loop [2023-11-23 22:43:13,785 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:43:13,785 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:43:13,785 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:13,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:13,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:13,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:43:13,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:43:13,865 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:43:13,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:13,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:13,867 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:13,871 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 [2023-11-23 22:43:13,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:13,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:13,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:13,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:13,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:43:13,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:43:13,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-23 22:43:13,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:43:13,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-23 22:43:13,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:13,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:13,918 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:13,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-23 22:43:13,921 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 [2023-11-23 22:43:13,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:43:13,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:43:13,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:43:13,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:43:13,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:43:13,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:43:13,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:43:13,940 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:43:13,944 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-23 22:43:13,945 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:43:13,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:43:13,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:13,951 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:13,957 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:43:13,957 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:43:13,957 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:43:13,958 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 [] [2023-11-23 22:43:13,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-23 22:43:13,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:13,979 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:43:13,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:43:14,134 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 [2023-11-23 22:43:14,135 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35 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) [2023-11-23 22:43:14,140 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35. 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 74 states and 102 transitions. Complement of second has 3 states. [2023-11-23 22:43:14,141 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 [2023-11-23 22:43:14,142 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) [2023-11-23 22:43:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-23 22:43:14,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-23 22:43:14,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:14,142 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:14,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:43:14,326 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 [2023-11-23 22:43:14,326 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35 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) [2023-11-23 22:43:14,335 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35. 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 74 states and 102 transitions. Complement of second has 3 states. [2023-11-23 22:43:14,335 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 [2023-11-23 22:43:14,336 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) [2023-11-23 22:43:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-23 22:43:14,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-23 22:43:14,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:14,337 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:14,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,506 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:43:14,507 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 [2023-11-23 22:43:14,507 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35 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) [2023-11-23 22:43:14,523 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35. 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 104 states and 136 transitions. Complement of second has 4 states. [2023-11-23 22:43:14,525 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 [2023-11-23 22:43:14,525 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) [2023-11-23 22:43:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-23 22:43:14,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-23 22:43:14,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:14,527 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:14,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:43:14,678 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 [2023-11-23 22:43:14,678 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35 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) [2023-11-23 22:43:14,695 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35. 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 104 states and 136 transitions. Complement of second has 4 states. [2023-11-23 22:43:14,696 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 [2023-11-23 22:43:14,696 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) [2023-11-23 22:43:14,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-23 22:43:14,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-23 22:43:14,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:14,698 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:43:14,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:43:14,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 22:43:14,851 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 [2023-11-23 22:43:14,851 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 74 states and 102 transitions. cyclomatic complexity: 35 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) [2023-11-23 22:43:14,960 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,964 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,965 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,965 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,966 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,986 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,992 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,992 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,993 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:14,993 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,012 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,019 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,019 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,020 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,020 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,021 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,021 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,040 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,041 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,050 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,050 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,051 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,051 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,075 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,075 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,076 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,076 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,077 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,077 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,077 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:15,121 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,122 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,129 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,130 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,130 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,130 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,131 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,131 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,131 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,132 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,132 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,141 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,141 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,149 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,149 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,149 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,150 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,150 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,151 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,152 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,152 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,153 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,160 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,162 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,163 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,163 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,173 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,175 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,178 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,179 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,179 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,180 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,180 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,180 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,181 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,181 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,182 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,182 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,182 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,183 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,183 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,191 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-23 22:43:15,193 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,194 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,194 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,204 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-23 22:43:15,206 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-23 22:43:15,208 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,209 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,209 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,210 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,210 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,210 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,211 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,211 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,212 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,212 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,212 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,213 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,213 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,214 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,220 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,220 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,220 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,232 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,232 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,232 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,233 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,233 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,233 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,234 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,234 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,234 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,234 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,235 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,235 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,235 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,236 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,242 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,243 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,253 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,254 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,255 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,255 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,256 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,264 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,265 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,271 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,277 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,277 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,277 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,278 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,278 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,278 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,279 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,284 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,285 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,286 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,287 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,288 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,288 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,289 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,289 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,294 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-23 22:43:15,295 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,296 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,297 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,298 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,298 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,299 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,300 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,300 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,301 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,302 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,302 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,308 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,309 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,309 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,310 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,311 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,312 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,313 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,313 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,313 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,320 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,321 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,322 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,322 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,323 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,324 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,325 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,326 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,327 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,328 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,329 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,329 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,330 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,334 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,335 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,336 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,337 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,343 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,343 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,344 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,344 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,346 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,347 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,351 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,354 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,354 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,366 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-23 22:43:15,368 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,368 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,369 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-23 22:43:15,373 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,374 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,374 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,375 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,381 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,385 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,386 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,387 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,388 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,389 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,399 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,400 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,400 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,416 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,417 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,423 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,424 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,424 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,425 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,425 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,431 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,432 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,432 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-23 22:43:15,445 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 74 states and 102 transitions. cyclomatic complexity: 35 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 4742 states and 8919 transitions. Complement of second has 430 states 13 powerset states417 rank states. The highest rank that occured is 9 [2023-11-23 22:43:15,446 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 [2023-11-23 22:43:15,446 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) [2023-11-23 22:43:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2023-11-23 22:43:15,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-23 22:43:15,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:15,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 27 letters. Loop has 20 letters. [2023-11-23 22:43:15,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:15,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 40 letters. [2023-11-23 22:43:15,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:43:15,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4742 states and 8919 transitions. [2023-11-23 22:43:15,586 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:43:15,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4742 states to 0 states and 0 transitions. [2023-11-23 22:43:15,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 22:43:15,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 22:43:15,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 22:43:15,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:15,587 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:43:15,587 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:43:15,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:15,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 22:43:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:43:15,589 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 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) [2023-11-23 22:43:15,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:15,590 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-23 22:43:15,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-23 22:43:15,590 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:43:15,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:43:15,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 22:43:15,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 22:43:15,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 22:43:15,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:15,591 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:43:15,591 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:43:15,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:43:15,596 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:43:15,596 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-23 22:43:15,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:43:15,597 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:43:15,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-23 22:43:15,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:43:15 BoogieIcfgContainer [2023-11-23 22:43:15,609 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 22:43:15,609 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:43:15,610 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:43:15,610 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:43:15,610 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:04" (3/4) ... [2023-11-23 22:43:15,613 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:43:15,614 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:43:15,615 INFO L158 Benchmark]: Toolchain (without parser) took 12008.65ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 89.5MB in the beginning and 135.4MB in the end (delta: -45.9MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2023-11-23 22:43:15,615 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 132.1MB. Free memory was 104.2MB in the beginning and 104.0MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:43:15,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.94ms. Allocated memory is still 132.1MB. Free memory was 89.5MB in the beginning and 80.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 22:43:15,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.54ms. Allocated memory is still 132.1MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:43:15,617 INFO L158 Benchmark]: Boogie Preprocessor took 34.31ms. Allocated memory is still 132.1MB. Free memory was 79.0MB in the beginning and 77.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:43:15,617 INFO L158 Benchmark]: RCFGBuilder took 263.40ms. Allocated memory is still 132.1MB. Free memory was 77.5MB in the beginning and 69.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 22:43:15,618 INFO L158 Benchmark]: BuchiAutomizer took 11374.97ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 69.1MB in the beginning and 136.4MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:43:15,618 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 178.3MB. Free memory was 136.4MB in the beginning and 135.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:43:15,622 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 132.1MB. Free memory was 104.2MB in the beginning and 104.0MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.94ms. Allocated memory is still 132.1MB. Free memory was 89.5MB in the beginning and 80.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.54ms. Allocated memory is still 132.1MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.31ms. Allocated memory is still 132.1MB. Free memory was 79.0MB in the beginning and 77.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 263.40ms. Allocated memory is still 132.1MB. Free memory was 77.5MB in the beginning and 69.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 11374.97ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 69.1MB in the beginning and 136.4MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 178.3MB. Free memory was 136.4MB in the beginning and 135.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 * n)) and consists of 4 locations. One deterministic module has affine ranking function (211 + (-2 * n)) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * n) + 201) and consists of 4 locations. One nondeterministic module has affine ranking function (211 + (-2 * n)) and consists of 3 locations. One nondeterministic module has affine ranking function c and consists of 3 locations. One nondeterministic module has affine ranking function ((-2 * n) + 221) and consists of 4 locations. One nondeterministic module has affine ranking function n and consists of 7 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 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.3s and 10 iterations. TraceHistogramMax:10. Analysis of lassos took 6.9s. Construction of modules took 0.2s. Büchi inclusion checks took 3.7s. Highest rank in rank-based complementation 9. Minimization of det autom 2. Minimization of nondet autom 11. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 341 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.1s 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: 84/100 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 163 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 209 IncrementalHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 130 mSDtfsCounter, 209 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 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-23 22:43:15,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:15,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:16,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f306f910-b811-489f-8564-498fae36611c/bin/uautomizer-verify-zZY32mL2XJ/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