./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu --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-9bd2c7f [2023-11-19 07:41:21,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:21,947 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:41:21,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:21,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:21,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:21,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:21,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:21,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:22,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:22,001 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:22,002 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:41:22,002 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:41:22,004 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:41:22,005 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:41:22,005 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:41:22,006 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:41:22,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:22,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:41:22,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:22,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:22,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:41:22,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:41:22,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:41:22,010 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:41:22,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:22,011 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:41:22,012 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:22,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:22,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:22,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:22,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:22,015 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:41:22,016 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_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 [2023-11-19 07:41:22,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:22,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:22,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:22,398 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:22,398 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:22,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-11-19 07:41:25,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:25,734 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:25,735 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-11-19 07:41:25,742 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/data/089b1d452/2db3e724191e4e3bb758996588fbf8d5/FLAGbf7cde123 [2023-11-19 07:41:25,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/data/089b1d452/2db3e724191e4e3bb758996588fbf8d5 [2023-11-19 07:41:25,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:25,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:25,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:25,763 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:25,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:25,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:25,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8f6f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25, skipping insertion in model container [2023-11-19 07:41:25,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:25,791 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:25,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:25,948 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:25,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:25,970 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:25,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25 WrapperNode [2023-11-19 07:41:25,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:25,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:25,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:25,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:25,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:25,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:25,997 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-19 07:41:25,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:25,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:25,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:25,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:26,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:26,024 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:26,024 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:26,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:26,025 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (1/1) ... [2023-11-19 07:41:26,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:26,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:26,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:26,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:26,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:26,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:26,165 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:26,168 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:26,272 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:26,285 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:26,295 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:41:26,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:26 BoogieIcfgContainer [2023-11-19 07:41:26,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:26,300 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:41:26,312 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:41:26,316 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:41:26,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:41:26,318 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:41:25" (1/3) ... [2023-11-19 07:41:26,319 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@415825ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:41:26, skipping insertion in model container [2023-11-19 07:41:26,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:41:26,319 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:25" (2/3) ... [2023-11-19 07:41:26,320 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@415825ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:41:26, skipping insertion in model container [2023-11-19 07:41:26,320 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:41:26,320 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:26" (3/3) ... [2023-11-19 07:41:26,321 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91_Iteration.c [2023-11-19 07:41:26,386 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:41:26,386 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:41:26,386 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:41:26,386 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:41:26,387 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:41:26,387 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:41:26,389 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:41:26,390 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:41:26,394 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) [2023-11-19 07:41:26,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:41:26,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:26,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:26,420 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:41:26,420 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:41:26,420 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:41:26,421 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) [2023-11-19 07:41:26,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:41:26,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:26,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:26,425 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:41:26,425 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:41:26,435 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L15-2true [2023-11-19 07:41:26,435 INFO L750 eck$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 [2023-11-19 07:41:26,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:26,449 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:41:26,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:26,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976095971] [2023-11-19 07:41:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:26,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:26,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:26,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:26,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-19 07:41:26,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:26,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540283814] [2023-11-19 07:41:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:26,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:26,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:26,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:26,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:26,591 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-19 07:41:26,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:26,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537935083] [2023-11-19 07:41:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:26,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:26,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:26,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:26,702 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:26,702 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:26,703 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:26,703 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:26,703 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:26,703 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:26,703 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:26,703 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:26,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2023-11-19 07:41:26,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:26,704 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:26,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:26,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:26,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:26,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:26,839 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:26,840 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:26,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:26,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:26,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:26,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:41:26,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:26,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:26,876 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:26,877 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: [] [2023-11-19 07:41:26,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 07:41:26,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:26,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:26,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:26,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:41:26,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:26,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:26,919 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:26,919 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: [] [2023-11-19 07:41:26,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:26,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:26,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:26,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:26,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:26,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:26,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:41:26,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:26,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:26,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:26,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:26,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:41:26,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:26,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:27,020 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:27,021 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] [2023-11-19 07:41:27,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:27,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:27,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:41:27,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:27,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:27,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:27,107 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:27,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:27,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:27,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:41:27,160 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:27,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,163 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:27,163 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:27,163 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:27,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:27,164 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:27,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:27,168 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:27,168 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2023-11-19 07:41:27,168 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:27,168 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:27,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:27,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:27,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:27,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:27,277 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:27,281 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:27,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:27,285 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:27,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:41:27,289 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 [2023-11-19 07:41:27,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:27,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:27,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:27,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:27,310 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:27,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:27,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:27,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:27,348 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:27,357 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 [2023-11-19 07:41:27,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:27,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:27,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:27,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:27,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:27,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:27,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:41:27,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:27,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:27,410 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:27,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:41:27,412 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 [2023-11-19 07:41:27,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:27,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:27,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:27,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:27,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:27,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:27,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:27,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:27,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:27,463 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:27,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:41:27,473 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 [2023-11-19 07:41:27,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:27,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:27,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:27,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:27,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:27,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:27,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:27,497 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:27,501 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:41:27,501 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:27,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:27,533 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:27,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:41:27,534 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:27,534 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:27,535 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:27,535 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 [] [2023-11-19 07:41:27,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,551 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:27,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:27,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:27,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:27,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:27,687 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:27,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:27,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:27,730 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 [2023-11-19 07:41:27,733 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) [2023-11-19 07:41:27,770 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. [2023-11-19 07:41:27,772 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 [2023-11-19 07:41:27,776 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) [2023-11-19 07:41:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-19 07:41:27,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-19 07:41:27,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:27,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-19 07:41:27,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:27,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:41:27,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:27,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2023-11-19 07:41:27,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:41:27,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2023-11-19 07:41:27,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:41:27,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 07:41:27,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-19 07:41:27,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:27,789 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 07:41:27,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-19 07:41:27,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-19 07:41:27,814 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) [2023-11-19 07:41:27,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-19 07:41:27,816 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 07:41:27,816 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-19 07:41:27,816 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:41:27,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-19 07:41:27,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:41:27,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:27,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:27,818 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 07:41:27,818 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:41:27,818 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 [2023-11-19 07:41:27,818 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 [2023-11-19 07:41:27,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-19 07:41:27,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:27,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422992443] [2023-11-19 07:41:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:27,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:27,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:27,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-19 07:41:27,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:27,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431545167] [2023-11-19 07:41:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:27,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:27,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:27,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,844 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-19 07:41:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:27,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354226959] [2023-11-19 07:41:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:27,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:27,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354226959] [2023-11-19 07:41:27,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354226959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:27,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:27,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:27,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266031502] [2023-11-19 07:41:27,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:27,945 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:27,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:27,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:27,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:27,946 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:27,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:27,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:27,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:27,947 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2023-11-19 07:41:27,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:27,947 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:27,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:27,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:27,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:27,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:28,014 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:28,014 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:28,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,017 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:41:28,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:28,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:28,050 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:28,050 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: [] [2023-11-19 07:41:28,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:28,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,076 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:28,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:28,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:41:28,112 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:28,112 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: [] [2023-11-19 07:41:28,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:28,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,133 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:41:28,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:28,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:28,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-19 07:41:28,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,164 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:41:28,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:28,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:28,220 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:28,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:28,233 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:28,233 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:28,233 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:28,233 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:28,233 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:28,234 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,234 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:28,234 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:28,234 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2023-11-19 07:41:28,234 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:28,234 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:28,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:28,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:28,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:28,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:28,319 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:28,320 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:28,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,321 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,338 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 [2023-11-19 07:41:28,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:28,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:28,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:28,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:28,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:41:28,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:28,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:28,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:28,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:28,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,405 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,412 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 [2023-11-19 07:41:28,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:28,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:28,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:28,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:28,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:28,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:28,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:41:28,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:28,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:28,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,473 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,476 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 [2023-11-19 07:41:28,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:28,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:28,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:28,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:28,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:28,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:41:28,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:28,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:28,508 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:28,511 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:41:28,511 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:28,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,514 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,528 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:28,528 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:28,528 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:28,528 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 [] [2023-11-19 07:41:28,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 07:41:28,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:28,545 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:28,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:28,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:28,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:28,593 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:28,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:28,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:28,608 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 [2023-11-19 07:41:28,608 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) [2023-11-19 07:41:28,621 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. [2023-11-19 07:41:28,622 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 [2023-11-19 07:41:28,623 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) [2023-11-19 07:41:28,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-19 07:41:28,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-19 07:41:28,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:28,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-19 07:41:28,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:28,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-19 07:41:28,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:28,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-11-19 07:41:28,628 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:41:28,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-11-19 07:41:28,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 07:41:28,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:41:28,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-11-19 07:41:28,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:28,629 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-19 07:41:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-11-19 07:41:28,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-19 07:41:28,633 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) [2023-11-19 07:41:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-11-19 07:41:28,634 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-19 07:41:28,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:28,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:28,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:28,638 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) [2023-11-19 07:41:28,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:28,656 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-19 07:41:28,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-19 07:41:28,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:41:28,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2023-11-19 07:41:28,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-19 07:41:28,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:41:28,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2023-11-19 07:41:28,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:28,658 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-19 07:41:28,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2023-11-19 07:41:28,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-19 07:41:28,660 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) [2023-11-19 07:41:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2023-11-19 07:41:28,660 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-19 07:41:28,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:28,662 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-19 07:41:28,662 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:41:28,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2023-11-19 07:41:28,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:41:28,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:28,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:28,663 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2023-11-19 07:41:28,663 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:41:28,663 INFO L748 eck$LassoCheckResult]: Stem: 149#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 150#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 155#L15-2 assume !!(main_~c~0#1 > 0); 156#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 160#L15-2 assume !!(main_~c~0#1 > 0); 159#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 157#L15-2 assume !!(main_~c~0#1 > 0); 151#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 152#L15-2 [2023-11-19 07:41:28,664 INFO L750 eck$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 [2023-11-19 07:41:28,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:28,664 INFO L85 PathProgramCache]: Analyzing trace with hash 297591406, now seen corresponding path program 2 times [2023-11-19 07:41:28,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:28,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43881430] [2023-11-19 07:41:28,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:28,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:28,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:28,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:28,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-19 07:41:28,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:28,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095985570] [2023-11-19 07:41:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:28,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:28,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:28,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:28,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:28,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1777467309, now seen corresponding path program 3 times [2023-11-19 07:41:28,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:28,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205002935] [2023-11-19 07:41:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:28,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:28,762 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:28,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205002935] [2023-11-19 07:41:28,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205002935] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422240556] [2023-11-19 07:41:28,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:41:28,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:28,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,765 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:41:28,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-19 07:41:28,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:41:28,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:41:28,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:28,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:28,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422240556] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:28,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:41:28,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-11-19 07:41:28,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485200816] [2023-11-19 07:41:28,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:28,975 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:28,975 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:28,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:28,976 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:28,976 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:28,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:28,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:28,976 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:28,976 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2023-11-19 07:41:28,976 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:28,976 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:28,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:28,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:28,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:28,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,039 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:29,040 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:29,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:29,044 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:29,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:29,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:29,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:41:29,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:29,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:29,103 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:29,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:29,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:29,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:41:29,153 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:29,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:29,163 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:29,163 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:29,163 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:29,163 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:29,163 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:29,163 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:29,164 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:29,164 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2023-11-19 07:41:29,164 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:29,164 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:29,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,185 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,255 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:29,255 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:29,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:29,256 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:29,259 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 [2023-11-19 07:41:29,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:29,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:29,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:29,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:29,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:29,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 07:41:29,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:29,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:29,300 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:29,303 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:41:29,303 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:29,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:29,305 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:29,307 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:29,307 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:29,307 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:29,307 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 [] [2023-11-19 07:41:29,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 07:41:29,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:29,329 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:29,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:29,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:29,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:29,379 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:29,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:29,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:29,385 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 [2023-11-19 07:41:29,385 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) [2023-11-19 07:41:29,403 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. [2023-11-19 07:41:29,404 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 [2023-11-19 07:41:29,406 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) [2023-11-19 07:41:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-19 07:41:29,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:41:29,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:29,407 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:29,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:29,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:29,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:29,460 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:29,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:29,468 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 [2023-11-19 07:41:29,469 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) [2023-11-19 07:41:29,478 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. [2023-11-19 07:41:29,479 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 [2023-11-19 07:41:29,482 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) [2023-11-19 07:41:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-19 07:41:29,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:41:29,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:29,483 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:29,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:29,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:29,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:29,527 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:29,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:29,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:29,531 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 07:41:29,532 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) [2023-11-19 07:41:29,542 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. [2023-11-19 07:41:29,542 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 [2023-11-19 07:41:29,543 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) [2023-11-19 07:41:29,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:41:29,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-19 07:41:29,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:29,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-19 07:41:29,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:29,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-19 07:41:29,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:29,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2023-11-19 07:41:29,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:41:29,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2023-11-19 07:41:29,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 07:41:29,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:41:29,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-11-19 07:41:29,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:29,553 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-19 07:41:29,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-11-19 07:41:29,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2023-11-19 07:41:29,555 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) [2023-11-19 07:41:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-19 07:41:29,555 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-19 07:41:29,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:29,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:29,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:29,558 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) [2023-11-19 07:41:29,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:29,578 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2023-11-19 07:41:29,578 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-19 07:41:29,579 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-19 07:41:29,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2023-11-19 07:41:29,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-19 07:41:29,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-19 07:41:29,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-11-19 07:41:29,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:29,580 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-19 07:41:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-11-19 07:41:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2023-11-19 07:41:29,583 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) [2023-11-19 07:41:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-19 07:41:29,583 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:41:29,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:29,584 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-19 07:41:29,584 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:41:29,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-19 07:41:29,585 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-19 07:41:29,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:29,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:29,586 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:41:29,586 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-19 07:41:29,586 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 [2023-11-19 07:41:29,586 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 [2023-11-19 07:41:29,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:29,587 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-19 07:41:29,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:29,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082252792] [2023-11-19 07:41:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:29,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:29,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:29,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:29,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:29,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1266953, now seen corresponding path program 1 times [2023-11-19 07:41:29,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:29,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433970198] [2023-11-19 07:41:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:29,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:29,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:29,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:29,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:29,606 INFO L85 PathProgramCache]: Analyzing trace with hash 889694155, now seen corresponding path program 4 times [2023-11-19 07:41:29,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:29,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108253933] [2023-11-19 07:41:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:29,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:29,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:29,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:29,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:29,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:29,730 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:29,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:29,730 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:29,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:29,730 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:29,730 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,730 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:29,731 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:29,731 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2023-11-19 07:41:29,731 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:29,731 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:29,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,797 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:29,797 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:29,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:29,799 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:29,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 07:41:29,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:29,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:29,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:29,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:29,850 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:29,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:29,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:29,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:41:29,888 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:29,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:29,912 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:29,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:29,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:29,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:29,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:29,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:29,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:29,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:29,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2023-11-19 07:41:29,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:29,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:29,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,931 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:29,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,004 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:30,005 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:30,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:30,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:30,009 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:30,014 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 [2023-11-19 07:41:30,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:30,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:30,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:30,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:30,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:30,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:30,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:30,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:41:30,040 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:30,043 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:41:30,043 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:30,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:30,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:30,044 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:30,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:30,048 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:30,048 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:30,048 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 [] [2023-11-19 07:41:30,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 07:41:30,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:30,071 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:30,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:30,146 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 [2023-11-19 07:41:30,146 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) [2023-11-19 07:41:30,158 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. [2023-11-19 07:41:30,159 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 [2023-11-19 07:41:30,162 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) [2023-11-19 07:41:30,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-11-19 07:41:30,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:41:30,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,163 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:30,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:30,229 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 [2023-11-19 07:41:30,229 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) [2023-11-19 07:41:30,258 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. [2023-11-19 07:41:30,259 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 [2023-11-19 07:41:30,260 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) [2023-11-19 07:41:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-11-19 07:41:30,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-19 07:41:30,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-19 07:41:30,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-19 07:41:30,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-19 07:41:30,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:41:30,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2023-11-19 07:41:30,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-19 07:41:30,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 07:41:30,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-11-19 07:41:30,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:30,267 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-11-19 07:41:30,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-11-19 07:41:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-11-19 07:41:30,270 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) [2023-11-19 07:41:30,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-11-19 07:41:30,271 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-19 07:41:30,271 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-19 07:41:30,271 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:41:30,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2023-11-19 07:41:30,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-19 07:41:30,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:30,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:30,274 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-19 07:41:30,274 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:41:30,275 INFO L748 eck$LassoCheckResult]: Stem: 523#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 524#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 525#L15-2 assume !!(main_~c~0#1 > 0); 521#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 522#L15-2 assume !!(main_~c~0#1 > 0); 529#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 532#L15-2 assume !!(main_~c~0#1 > 0); 531#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 528#L15-2 assume !!(main_~c~0#1 > 0); 519#L15 [2023-11-19 07:41:30,275 INFO L750 eck$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 [2023-11-19 07:41:30,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,275 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 5 times [2023-11-19 07:41:30,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:30,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182869469] [2023-11-19 07:41:30,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:30,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:30,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:30,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:30,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-11-19 07:41:30,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:30,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569229248] [2023-11-19 07:41:30,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:30,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:30,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:30,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:30,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,328 INFO L85 PathProgramCache]: Analyzing trace with hash 790346520, now seen corresponding path program 6 times [2023-11-19 07:41:30,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:30,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247896674] [2023-11-19 07:41:30,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:30,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:30,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:30,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:30,378 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:30,378 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:30,378 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:30,378 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:30,378 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:30,378 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:30,378 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:30,379 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:30,379 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2023-11-19 07:41:30,379 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:30,379 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:30,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,444 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:30,444 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:30,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:30,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:30,448 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:30,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:30,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:30,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 07:41:30,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:30,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:30,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:30,504 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:30,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:30,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:30,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-19 07:41:30,586 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:30,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-19 07:41:30,589 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:30,590 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:30,590 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:30,590 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:30,590 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:30,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:30,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:30,590 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:30,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2023-11-19 07:41:30,590 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:30,590 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:30,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:30,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:30,664 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:30,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:30,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:30,669 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:30,673 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 [2023-11-19 07:41:30,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-19 07:41:30,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:30,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:30,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:30,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:30,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:30,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:30,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:30,703 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:30,706 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:41:30,706 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:30,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:30,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:30,707 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:30,709 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:30,710 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:30,710 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:30,710 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 [] [2023-11-19 07:41:30,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-19 07:41:30,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:30,735 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:30,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,780 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:30,793 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 [2023-11-19 07:41:30,794 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) [2023-11-19 07:41:30,800 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. [2023-11-19 07:41:30,801 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 [2023-11-19 07:41:30,802 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) [2023-11-19 07:41:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:41:30,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-19 07:41:30,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,803 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:30,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,850 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:30,861 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 [2023-11-19 07:41:30,861 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) [2023-11-19 07:41:30,865 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. [2023-11-19 07:41:30,865 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 [2023-11-19 07:41:30,866 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) [2023-11-19 07:41:30,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:41:30,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-19 07:41:30,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,867 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:30,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:30,915 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:30,930 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 [2023-11-19 07:41:30,931 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) [2023-11-19 07:41:30,956 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. [2023-11-19 07:41:30,957 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 [2023-11-19 07:41:30,958 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) [2023-11-19 07:41:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:41:30,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-19 07:41:30,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-19 07:41:30,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:41:30,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:30,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2023-11-19 07:41:30,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 07:41:30,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 24 transitions. [2023-11-19 07:41:30,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-19 07:41:30,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-11-19 07:41:30,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2023-11-19 07:41:30,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:30,966 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2023-11-19 07:41:30,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2023-11-19 07:41:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2023-11-19 07:41:30,968 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) [2023-11-19 07:41:30,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2023-11-19 07:41:30,969 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-19 07:41:30,969 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-19 07:41:30,969 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:41:30,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2023-11-19 07:41:30,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-19 07:41:30,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:30,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:30,971 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-19 07:41:30,971 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-19 07:41:30,971 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 [2023-11-19 07:41:30,971 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 [2023-11-19 07:41:30,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,972 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 7 times [2023-11-19 07:41:30,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:30,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757693830] [2023-11-19 07:41:30,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:30,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:31,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:31,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:31,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-11-19 07:41:31,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:31,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125222796] [2023-11-19 07:41:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:31,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:31,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:31,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:31,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,029 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 8 times [2023-11-19 07:41:31,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:31,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968446970] [2023-11-19 07:41:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:31,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:31,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:31,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:31,113 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:31,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:31,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:31,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:31,114 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:31,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:31,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:31,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:31,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2023-11-19 07:41:31,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:31,114 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:31,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,182 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:31,183 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:31,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:31,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:31,184 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:31,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:31,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:31,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-19 07:41:31,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:31,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:31,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:31,241 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:31,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:31,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:31,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-19 07:41:31,272 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:31,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-19 07:41:31,284 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:31,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:31,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:31,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:31,284 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:31,285 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:31,285 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:31,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:31,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2023-11-19 07:41:31,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:31,285 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:31,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,363 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:31,363 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:31,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:31,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:31,364 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:31,367 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 [2023-11-19 07:41:31,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:31,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:31,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:31,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:31,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:31,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:31,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:31,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-19 07:41:31,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:31,408 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:41:31,408 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:31,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:31,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:31,411 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:31,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:31,412 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:31,412 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:31,412 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 [] [2023-11-19 07:41:31,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-19 07:41:31,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:31,438 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:31,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:31,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:41:31,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:31,504 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 [2023-11-19 07:41:31,504 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) [2023-11-19 07:41:31,530 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. [2023-11-19 07:41:31,531 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 [2023-11-19 07:41:31,532 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) [2023-11-19 07:41:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-19 07:41:31,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:41:31,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:31,535 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:31,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:31,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:41:31,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:31,606 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 [2023-11-19 07:41:31,606 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) [2023-11-19 07:41:31,636 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. [2023-11-19 07:41:31,637 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 [2023-11-19 07:41:31,637 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) [2023-11-19 07:41:31,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-19 07:41:31,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:41:31,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:31,638 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:31,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:31,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:31,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:41:31,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:31,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:31,782 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 [2023-11-19 07:41:31,782 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) [2023-11-19 07:41:31,812 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. [2023-11-19 07:41:31,812 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 [2023-11-19 07:41:31,814 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) [2023-11-19 07:41:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-19 07:41:31,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-19 07:41:31,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:31,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:31,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-19 07:41:31,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:31,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-19 07:41:31,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:31,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2023-11-19 07:41:31,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-19 07:41:31,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 40 transitions. [2023-11-19 07:41:31,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 07:41:31,822 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-19 07:41:31,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2023-11-19 07:41:31,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:31,822 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-11-19 07:41:31,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2023-11-19 07:41:31,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-11-19 07:41:31,825 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) [2023-11-19 07:41:31,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2023-11-19 07:41:31,826 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-19 07:41:31,826 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-19 07:41:31,826 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 07:41:31,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2023-11-19 07:41:31,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 07:41:31,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:31,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:31,829 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 3, 3, 1, 1] [2023-11-19 07:41:31,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 2, 1] [2023-11-19 07:41:31,830 INFO L748 eck$LassoCheckResult]: Stem: 983#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 984#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 985#L15-2 assume !!(main_~c~0#1 > 0); 995#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 996#L15-2 assume !!(main_~c~0#1 > 0); 993#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 991#L15-2 assume !!(main_~c~0#1 > 0); 990#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 986#L15-2 assume !!(main_~c~0#1 > 0); 987#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 981#L15-2 assume !!(main_~c~0#1 > 0); 1003#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1002#L15-2 assume !!(main_~c~0#1 > 0); 1001#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 999#L15-2 assume !!(main_~c~0#1 > 0); 980#L15 [2023-11-19 07:41:31,830 INFO L750 eck$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 [2023-11-19 07:41:31,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1981740944, now seen corresponding path program 9 times [2023-11-19 07:41:31,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:31,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683975704] [2023-11-19 07:41:31,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:31,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:41:31,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683975704] [2023-11-19 07:41:31,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683975704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:31,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:31,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:31,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695990446] [2023-11-19 07:41:31,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:31,892 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:41:31,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:31,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1298898678, now seen corresponding path program 3 times [2023-11-19 07:41:31,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:31,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943691663] [2023-11-19 07:41:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:31,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:31,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:31,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:31,980 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:31,980 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:31,980 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:31,980 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:31,981 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:31,981 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:31,981 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:31,981 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:31,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2023-11-19 07:41:31,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:31,981 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:31,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:31,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:32,056 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:32,056 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:32,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:32,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:32,057 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:32,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-19 07:41:32,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:32,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:32,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-19 07:41:32,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:32,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:32,087 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:32,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:32,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:32,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-19 07:41:32,358 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:32,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-11-19 07:41:32,362 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:32,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:32,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:32,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:32,362 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:32,362 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:32,362 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:32,362 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:32,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2023-11-19 07:41:32,363 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:32,363 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:32,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:32,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:32,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:32,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:32,438 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:32,438 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:32,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:32,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:32,439 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:32,447 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 [2023-11-19 07:41:32,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:32,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:32,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:32,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:32,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:32,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:32,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:32,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-19 07:41:32,484 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:32,487 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:41:32,487 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:32,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:32,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:32,493 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:32,495 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:32,495 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:32,495 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:32,495 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 [] [2023-11-19 07:41:32,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-19 07:41:32,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:32,518 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:32,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:32,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:32,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:32,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:32,640 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 [2023-11-19 07:41:32,641 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) [2023-11-19 07:41:32,755 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. [2023-11-19 07:41:32,755 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 [2023-11-19 07:41:32,757 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) [2023-11-19 07:41:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:41:32,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-19 07:41:32,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:32,757 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:32,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:32,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:32,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:32,857 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 [2023-11-19 07:41:32,857 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) [2023-11-19 07:41:32,862 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. [2023-11-19 07:41:32,863 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 [2023-11-19 07:41:32,864 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) [2023-11-19 07:41:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:41:32,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-19 07:41:32,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:32,864 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:32,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:32,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:32,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:32,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:32,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:32,964 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 [2023-11-19 07:41:32,965 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) [2023-11-19 07:41:32,979 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. [2023-11-19 07:41:32,979 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 [2023-11-19 07:41:32,980 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) [2023-11-19 07:41:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-19 07:41:32,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-19 07:41:32,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:32,981 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:32,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:33,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:33,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:33,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:33,078 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 [2023-11-19 07:41:33,079 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) [2023-11-19 07:41:33,112 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. [2023-11-19 07:41:33,112 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 [2023-11-19 07:41:33,113 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) [2023-11-19 07:41:33,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-19 07:41:33,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-19 07:41:33,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:33,114 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:33,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:33,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:41:33,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:33,217 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 [2023-11-19 07:41:33,218 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) [2023-11-19 07:41:33,272 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:33,273 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:33,294 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:33,328 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:33,328 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:33,344 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:33,344 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:33,346 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 [2023-11-19 07:41:33,346 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 [2023-11-19 07:41:33,347 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) [2023-11-19 07:41:33,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2023-11-19 07:41:33,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-19 07:41:33,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:33,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 21 letters. Loop has 6 letters. [2023-11-19 07:41:33,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:33,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 15 letters. Loop has 12 letters. [2023-11-19 07:41:33,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:33,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 880 transitions. [2023-11-19 07:41:33,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2023-11-19 07:41:33,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 384 states and 664 transitions. [2023-11-19 07:41:33,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-19 07:41:33,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2023-11-19 07:41:33,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 384 states and 664 transitions. [2023-11-19 07:41:33,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:33,370 INFO L218 hiAutomatonCegarLoop]: Abstraction has 384 states and 664 transitions. [2023-11-19 07:41:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states and 664 transitions. [2023-11-19 07:41:33,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 99. [2023-11-19 07:41:33,388 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) [2023-11-19 07:41:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 162 transitions. [2023-11-19 07:41:33,389 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99 states and 162 transitions. [2023-11-19 07:41:33,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:33,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:33,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:33,390 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) [2023-11-19 07:41:33,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:33,405 INFO L93 Difference]: Finished difference Result 122 states and 184 transitions. [2023-11-19 07:41:33,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122 states and 184 transitions. [2023-11-19 07:41:33,406 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2023-11-19 07:41:33,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122 states to 110 states and 166 transitions. [2023-11-19 07:41:33,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2023-11-19 07:41:33,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-19 07:41:33,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 166 transitions. [2023-11-19 07:41:33,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:33,408 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 166 transitions. [2023-11-19 07:41:33,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 166 transitions. [2023-11-19 07:41:33,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2023-11-19 07:41:33,414 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) [2023-11-19 07:41:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 140 transitions. [2023-11-19 07:41:33,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 140 transitions. [2023-11-19 07:41:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:33,416 INFO L428 stractBuchiCegarLoop]: Abstraction has 92 states and 140 transitions. [2023-11-19 07:41:33,416 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-19 07:41:33,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 140 transitions. [2023-11-19 07:41:33,417 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2023-11-19 07:41:33,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:33,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:33,418 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2023-11-19 07:41:33,418 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 2, 2] [2023-11-19 07:41:33,418 INFO L748 eck$LassoCheckResult]: Stem: 2413#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2414#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2465#L15-2 assume !!(main_~c~0#1 > 0); 2460#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2462#L15-2 assume !!(main_~c~0#1 > 0); 2432#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2429#L15-2 assume !!(main_~c~0#1 > 0); 2431#L15 [2023-11-19 07:41:33,418 INFO L750 eck$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 [2023-11-19 07:41:33,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 2 times [2023-11-19 07:41:33,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:33,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664034100] [2023-11-19 07:41:33,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:33,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:33,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:33,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:33,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1593853071, now seen corresponding path program 4 times [2023-11-19 07:41:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:33,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401057186] [2023-11-19 07:41:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:33,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:41:33,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:33,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401057186] [2023-11-19 07:41:33,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401057186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:33,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:33,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:33,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252941016] [2023-11-19 07:41:33,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:33,483 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:41:33,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:33,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:33,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:33,483 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) [2023-11-19 07:41:33,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:33,495 INFO L93 Difference]: Finished difference Result 113 states and 154 transitions. [2023-11-19 07:41:33,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 154 transitions. [2023-11-19 07:41:33,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2023-11-19 07:41:33,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 93 states and 126 transitions. [2023-11-19 07:41:33,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-19 07:41:33,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2023-11-19 07:41:33,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 126 transitions. [2023-11-19 07:41:33,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:41:33,498 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93 states and 126 transitions. [2023-11-19 07:41:33,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 126 transitions. [2023-11-19 07:41:33,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 74. [2023-11-19 07:41:33,508 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) [2023-11-19 07:41:33,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2023-11-19 07:41:33,509 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 102 transitions. [2023-11-19 07:41:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:33,510 INFO L428 stractBuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2023-11-19 07:41:33,510 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-19 07:41:33,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2023-11-19 07:41:33,511 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2023-11-19 07:41:33,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:41:33,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:41:33,512 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2023-11-19 07:41:33,512 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 6, 4] [2023-11-19 07:41:33,512 INFO L748 eck$LassoCheckResult]: Stem: 2624#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2625#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2627#L15-2 assume !!(main_~c~0#1 > 0); 2687#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2659#L15-2 assume !!(main_~c~0#1 > 0); 2681#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2682#L15-2 assume !!(main_~c~0#1 > 0); 2621#L15 [2023-11-19 07:41:33,512 INFO L750 eck$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 [2023-11-19 07:41:33,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 3 times [2023-11-19 07:41:33,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:33,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701475741] [2023-11-19 07:41:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:33,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:33,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:33,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:33,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,533 INFO L85 PathProgramCache]: Analyzing trace with hash -860275429, now seen corresponding path program 5 times [2023-11-19 07:41:33,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:33,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141924325] [2023-11-19 07:41:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:33,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:33,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:41:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:41:33,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:41:33,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:33,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1172307576, now seen corresponding path program 10 times [2023-11-19 07:41:33,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:33,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710209028] [2023-11-19 07:41:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:33,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:41:33,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:33,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710209028] [2023-11-19 07:41:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710209028] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:33,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639278279] [2023-11-19 07:41:33,785 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-19 07:41:33,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:33,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:33,788 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:33,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-19 07:41:33,830 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-19 07:41:33,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:41:33,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:41:33,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:41:33,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:41:34,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639278279] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:34,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:41:34,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-11-19 07:41:34,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740149801] [2023-11-19 07:41:34,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:34,246 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:34,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:34,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:34,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:34,246 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:41:34,246 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:34,246 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:34,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:34,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration9_Loop [2023-11-19 07:41:34,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:34,247 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:34,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:34,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:34,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:34,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:34,314 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:34,314 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:41:34,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:34,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:34,316 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:34,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:34,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:34,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-19 07:41:34,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:41:34,352 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: [] [2023-11-19 07:41:34,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:34,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:34,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:34,371 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:34,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:41:34,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:34,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-19 07:41:34,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:34,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:34,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:34,415 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:34,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:41:34,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:41:34,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-19 07:41:34,516 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:41:34,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:34,520 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:41:34,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:41:34,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:41:34,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:41:34,521 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:41:34,521 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:34,521 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:41:34,521 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:41:34,521 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration9_Loop [2023-11-19 07:41:34,521 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:41:34,521 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:41:34,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:34,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:34,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:34,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:41:34,582 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:41:34,582 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:41:34,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:34,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:34,583 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:34,592 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 [2023-11-19 07:41:34,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-19 07:41:34,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:34,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:34,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:34,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:34,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:41:34,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:41:34,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:41:34,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:34,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:34,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:34,643 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:34,648 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 [2023-11-19 07:41:34,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:41:34,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:41:34,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:41:34,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:41:34,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:41:34,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:41:34,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:41:34,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-19 07:41:34,667 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:41:34,669 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 07:41:34,669 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:41:34,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:41:34,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:34,670 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:34,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-19 07:41:34,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:41:34,672 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:41:34,672 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:41:34,672 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 [] [2023-11-19 07:41:34,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-19 07:41:34,686 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:41:34,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:34,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:41:34,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:41:34,833 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 [2023-11-19 07:41:34,833 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) [2023-11-19 07:41:34,840 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. [2023-11-19 07:41:34,840 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 [2023-11-19 07:41:34,843 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) [2023-11-19 07:41:34,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:41:34,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:41:34,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:34,845 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:34,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:34,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:41:34,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:41:34,971 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 [2023-11-19 07:41:34,971 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) [2023-11-19 07:41:34,976 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. [2023-11-19 07:41:34,977 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 [2023-11-19 07:41:34,977 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) [2023-11-19 07:41:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-19 07:41:34,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:41:34,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:34,978 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:34,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:34,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:34,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:41:35,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:35,101 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:41:35,102 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 [2023-11-19 07:41:35,102 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) [2023-11-19 07:41:35,117 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. [2023-11-19 07:41:35,118 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 [2023-11-19 07:41:35,119 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) [2023-11-19 07:41:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:41:35,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:41:35,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:35,120 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:35,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:35,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:41:35,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:41:35,246 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 [2023-11-19 07:41:35,246 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) [2023-11-19 07:41:35,265 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. [2023-11-19 07:41:35,265 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 [2023-11-19 07:41:35,266 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) [2023-11-19 07:41:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-19 07:41:35,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:41:35,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:35,267 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:41:35,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:41:35,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:35,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:41:35,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:41:35,409 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 [2023-11-19 07:41:35,410 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) [2023-11-19 07:41:35,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:35,531 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,535 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,536 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,536 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,536 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,556 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,560 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,561 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,561 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,562 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,579 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,584 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,585 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,585 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,585 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,586 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,586 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,592 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,593 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,598 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,599 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,599 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,599 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,600 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,600 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,600 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,601 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,601 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,601 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,601 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,628 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,628 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,634 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,634 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,635 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,635 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,635 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,636 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,636 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,636 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,637 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,642 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,642 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,649 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,649 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,649 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,650 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,650 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,651 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,651 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,652 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,652 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,657 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,659 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,660 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,660 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,667 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,669 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,670 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,671 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,671 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,671 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,672 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,672 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,672 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,673 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,673 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,673 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,674 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,674 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,674 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,679 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-19 07:41:35,681 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,681 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,682 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,688 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-19 07:41:35,690 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-19 07:41:35,692 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,692 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,692 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,693 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,693 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,693 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,694 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,694 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,694 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,694 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,695 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,695 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,695 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,696 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,700 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,701 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,701 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,711 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,711 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,711 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,711 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,712 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,712 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,712 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,713 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,713 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,713 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,713 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,714 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,714 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,714 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,720 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,720 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,729 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,730 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,730 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,730 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,731 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,737 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,737 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,742 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,747 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,747 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,748 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,748 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,748 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,748 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,749 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,753 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,754 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,754 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,755 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,756 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,756 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,757 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,757 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,760 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-19 07:41:35,762 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,762 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,763 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,764 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,764 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,765 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,765 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,766 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,767 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,767 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,767 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,772 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,773 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,773 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,774 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,775 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,776 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,776 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,776 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,777 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,782 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,783 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,784 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,784 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,785 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,785 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,787 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,787 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,788 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,789 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,790 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,790 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,790 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,794 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,794 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,795 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,796 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,801 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,801 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,801 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,802 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,803 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,804 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,807 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,809 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,809 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,818 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-19 07:41:35,820 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,820 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,821 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-19 07:41:35,824 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,824 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,824 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,825 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,830 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,833 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,834 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,834 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,836 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,836 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,845 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,845 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,845 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,858 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,858 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,863 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,863 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,864 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,864 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,864 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,869 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,870 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,870 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-19 07:41:35,880 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 [2023-11-19 07:41:35,881 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 [2023-11-19 07:41:35,881 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) [2023-11-19 07:41:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2023-11-19 07:41:35,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-19 07:41:35,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:35,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 27 letters. Loop has 20 letters. [2023-11-19 07:41:35,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:35,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 40 letters. [2023-11-19 07:41:35,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:41:35,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4742 states and 8919 transitions. [2023-11-19 07:41:36,013 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:41:36,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4742 states to 0 states and 0 transitions. [2023-11-19 07:41:36,014 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:41:36,014 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:41:36,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:41:36,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:36,014 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:41:36,014 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:41:36,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:36,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:41:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:41:36,016 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) [2023-11-19 07:41:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:36,016 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-19 07:41:36,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-19 07:41:36,017 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:41:36,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:41:36,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:41:36,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:41:36,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:41:36,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:36,018 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:41:36,018 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:41:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:41:36,022 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:41:36,022 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-19 07:41:36,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:41:36,023 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:41:36,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:41:36,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:41:36 BoogieIcfgContainer [2023-11-19 07:41:36,034 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:41:36,035 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:41:36,035 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:41:36,036 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:41:36,036 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:26" (3/4) ... [2023-11-19 07:41:36,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:41:36,039 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:41:36,040 INFO L158 Benchmark]: Toolchain (without parser) took 10279.21ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 124.8MB in the beginning and 157.3MB in the end (delta: -32.5MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-11-19 07:41:36,040 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:41:36,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.67ms. Allocated memory is still 167.8MB. Free memory was 124.8MB in the beginning and 115.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:41:36,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.68ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 114.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:41:36,042 INFO L158 Benchmark]: Boogie Preprocessor took 24.61ms. Allocated memory is still 167.8MB. Free memory was 114.3MB in the beginning and 113.5MB in the end (delta: 870.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:41:36,042 INFO L158 Benchmark]: RCFGBuilder took 275.43ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 103.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:41:36,043 INFO L158 Benchmark]: BuchiAutomizer took 9734.33ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 103.9MB in the beginning and 158.3MB in the end (delta: -54.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:41:36,043 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 203.4MB. Free memory was 158.3MB in the beginning and 157.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:41:36,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.67ms. Allocated memory is still 167.8MB. Free memory was 124.8MB in the beginning and 115.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.68ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 114.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.61ms. Allocated memory is still 167.8MB. Free memory was 114.3MB in the beginning and 113.5MB in the end (delta: 870.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 275.43ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 103.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 9734.33ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 103.9MB in the beginning and 158.3MB in the end (delta: -54.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.35ms. Allocated memory is still 203.4MB. Free memory was 158.3MB in the beginning and 157.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 9.6s and 10 iterations. TraceHistogramMax:10. Analysis of lassos took 5.8s. Construction of modules took 0.2s. Büchi inclusion checks took 3.2s. 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: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:41:36,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-19 07:41:36,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-19 07:41:36,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32efbd95-be29-4306-a1b8-41c8d3190860/bin/uautomizer-verify-uCwYo4JHxu/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