./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_22.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB --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 2aebec197cf7bd355d2eb5f718c983de149eae8f5ff2da107813d58a220d4744 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:06:18,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:06:18,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 03:06:18,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:06:18,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:06:18,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:06:18,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:06:18,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:06:18,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:06:18,669 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:06:18,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:06:18,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:06:18,669 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:06:18,670 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 03:06:18,670 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 03:06:18,670 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 03:06:18,670 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 03:06:18,670 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 03:06:18,670 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 03:06:18,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:06:18,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 03:06:18,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:06:18,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:06:18,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 03:06:18,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 03:06:18,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 03:06:18,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:06:18,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:06:18,672 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 03:06:18,672 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:06:18,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:06:18,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:06:18,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:06:18,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:06:18,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 03:06:18,673 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 03:06:18,673 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 2aebec197cf7bd355d2eb5f718c983de149eae8f5ff2da107813d58a220d4744 [2024-11-28 03:06:18,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:06:18,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:06:18,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:06:18,993 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:06:18,994 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:06:18,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-restricted-15/NO_22.c [2024-11-28 03:06:22,278 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/data/14639fbe1/a5febe097bf349e4b6c95c54c46f9119/FLAG9fda3231e [2024-11-28 03:06:22,623 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:06:22,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/sv-benchmarks/c/termination-restricted-15/NO_22.c [2024-11-28 03:06:22,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/data/14639fbe1/a5febe097bf349e4b6c95c54c46f9119/FLAG9fda3231e [2024-11-28 03:06:22,663 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/data/14639fbe1/a5febe097bf349e4b6c95c54c46f9119 [2024-11-28 03:06:22,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:06:22,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:06:22,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:22,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:06:22,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:06:22,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c12f961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22, skipping insertion in model container [2024-11-28 03:06:22,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:06:22,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:22,880 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:06:22,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:06:22,906 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:06:22,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22 WrapperNode [2024-11-28 03:06:22,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:06:22,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:22,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:06:22,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:06:22,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,942 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2024-11-28 03:06:22,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:06:22,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:06:22,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:06:22,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:06:22,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,956 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,963 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 03:06:22,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,967 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:06:22,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:06:22,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:06:22,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:06:22,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (1/1) ... [2024-11-28 03:06:22,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:23,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:23,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:23,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 03:06:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:06:23,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:06:23,156 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:06:23,158 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:06:23,240 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-28 03:06:23,240 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:06:23,255 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:06:23,256 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:06:23,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:23 BoogieIcfgContainer [2024-11-28 03:06:23,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:06:23,259 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 03:06:23,259 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 03:06:23,268 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 03:06:23,269 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:06:23,269 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:06:22" (1/3) ... [2024-11-28 03:06:23,271 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@82ac4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:06:23, skipping insertion in model container [2024-11-28 03:06:23,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:06:23,272 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:22" (2/3) ... [2024-11-28 03:06:23,273 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@82ac4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:06:23, skipping insertion in model container [2024-11-28 03:06:23,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:06:23,274 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:23" (3/3) ... [2024-11-28 03:06:23,275 INFO L363 chiAutomizerObserver]: Analyzing ICFG NO_22.c [2024-11-28 03:06:23,363 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 03:06:23,363 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 03:06:23,364 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 03:06:23,364 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 03:06:23,364 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 03:06:23,364 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 03:06:23,365 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 03:06:23,365 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 03:06:23,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:23,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 03:06:23,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:06:23,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:06:23,396 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:06:23,396 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:06:23,396 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 03:06:23,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:23,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 03:06:23,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:06:23,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:06:23,398 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:06:23,398 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:06:23,407 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0;" [2024-11-28 03:06:23,408 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" [2024-11-28 03:06:23,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 03:06:23,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:23,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262821684] [2024-11-28 03:06:23,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:23,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:23,499 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:23,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:23,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:23,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1225, now seen corresponding path program 1 times [2024-11-28 03:06:23,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:23,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350001476] [2024-11-28 03:06:23,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:23,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:23,539 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:23,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:23,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:23,552 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2024-11-28 03:06:23,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:23,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212060279] [2024-11-28 03:06:23,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:23,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:23,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:06:23,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212060279] [2024-11-28 03:06:23,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212060279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:23,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303439378] [2024-11-28 03:06:23,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:23,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:23,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:23,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:23,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:06:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:23,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:23,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:23,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:06:23,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303439378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:06:23,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:06:23,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2024-11-28 03:06:23,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661624584] [2024-11-28 03:06:23,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:06:23,826 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:06:23,827 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:06:23,827 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:06:23,828 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:06:23,830 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 03:06:23,830 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:23,830 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:06:23,830 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:06:23,830 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration1_Loop [2024-11-28 03:06:23,831 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:06:23,831 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:06:23,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:23,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:23,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:23,997 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:06:23,998 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 03:06:24,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,004 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 03:06:24,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:24,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:24,049 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:06:24,049 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:06:24,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:24,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 03:06:24,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:24,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:24,104 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:06:24,104 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:06:24,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 03:06:24,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 03:06:24,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:24,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:24,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-28 03:06:24,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,144 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 03:06:24,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:06:24,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:24,173 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 03:06:24,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-28 03:06:24,184 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:06:24,184 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:06:24,184 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:06:24,184 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:06:24,184 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:06:24,184 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,184 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:06:24,184 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:06:24,184 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration1_Loop [2024-11-28 03:06:24,185 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:06:24,185 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:06:24,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:24,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:24,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:24,320 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:06:24,324 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:06:24,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,330 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 03:06:24,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:24,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:24,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:24,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:24,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:24,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:06:24,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:06:24,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:06:24,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 03:06:24,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,387 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 03:06:24,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:24,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:24,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:24,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:24,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:24,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:06:24,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:06:24,425 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:06:24,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-28 03:06:24,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 03:06:24,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:24,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:24,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:06:24,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:24,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:24,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:24,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:06:24,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:06:24,473 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:06:24,477 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 03:06:24,480 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 03:06:24,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:24,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,485 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 03:06:24,488 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:06:24,488 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 03:06:24,488 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:06:24,489 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-28 03:06:24,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 03:06:24,499 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 03:06:24,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:24,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:24,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:24,551 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:24,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:24,613 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-28 03:06:24,616 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:24,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-28 03:06:24,668 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 17 states and 24 transitions. Complement of second has 6 states. [2024-11-28 03:06:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:06:24,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-11-28 03:06:24,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-28 03:06:24,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:24,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-28 03:06:24,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:24,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-28 03:06:24,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:24,691 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2024-11-28 03:06:24,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 03:06:24,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 8 states and 11 transitions. [2024-11-28 03:06:24,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-28 03:06:24,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-28 03:06:24,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-11-28 03:06:24,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:06:24,701 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-28 03:06:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-11-28 03:06:24,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-28 03:06:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-28 03:06:24,728 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-28 03:06:24,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:06:24,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:06:24,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:06:24,732 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:24,755 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2024-11-28 03:06:24,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2024-11-28 03:06:24,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 03:06:24,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2024-11-28 03:06:24,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-28 03:06:24,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 03:06:24,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2024-11-28 03:06:24,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:06:24,759 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-11-28 03:06:24,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2024-11-28 03:06:24,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-28 03:06:24,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2024-11-28 03:06:24,761 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-11-28 03:06:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:06:24,763 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-11-28 03:06:24,763 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 03:06:24,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2024-11-28 03:06:24,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 03:06:24,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:06:24,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:06:24,766 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-11-28 03:06:24,766 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:06:24,766 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 03:06:24,766 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" [2024-11-28 03:06:24,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash 889602767, now seen corresponding path program 1 times [2024-11-28 03:06:24,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:24,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886580516] [2024-11-28 03:06:24,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:24,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:24,780 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:24,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:24,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1225, now seen corresponding path program 2 times [2024-11-28 03:06:24,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:24,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740128910] [2024-11-28 03:06:24,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:24,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:24,800 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:24,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:24,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 209767447, now seen corresponding path program 1 times [2024-11-28 03:06:24,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:24,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103544037] [2024-11-28 03:06:24,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:24,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:24,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:06:24,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103544037] [2024-11-28 03:06:24,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103544037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:24,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017831600] [2024-11-28 03:06:24,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:24,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:24,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:24,934 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:24,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:06:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:24,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:24,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:25,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:06:25,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017831600] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:06:25,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:06:25,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 03:06:25,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704338353] [2024-11-28 03:06:25,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:06:25,122 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:06:25,123 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:06:25,123 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:06:25,123 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:06:25,123 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 03:06:25,123 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,123 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:06:25,123 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:06:25,123 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration2_Loop [2024-11-28 03:06:25,123 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:06:25,123 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:06:25,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:25,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:25,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:25,211 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:06:25,211 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 03:06:25,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:25,214 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:25,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 03:06:25,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:25,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:25,238 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:06:25,238 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:06:25,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-28 03:06:25,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:25,249 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:25,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 03:06:25,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:25,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:25,276 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:06:25,276 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:06:25,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 03:06:25,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:25,288 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:25,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 03:06:25,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:25,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:25,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:25,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:25,326 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:25,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 03:06:25,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:06:25,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:25,350 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 03:06:25,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-28 03:06:25,361 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:06:25,361 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:06:25,361 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:06:25,361 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:06:25,361 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:06:25,361 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,361 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:06:25,361 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:06:25,361 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration2_Loop [2024-11-28 03:06:25,361 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:06:25,361 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:06:25,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:25,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:25,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:25,446 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:06:25,446 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:06:25,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:25,449 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:25,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 03:06:25,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:25,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:25,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:25,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:25,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:25,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:06:25,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:06:25,479 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:06:25,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:25,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:25,501 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:25,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 03:06:25,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:25,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:25,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:25,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:25,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:25,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:06:25,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:06:25,542 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:06:25,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:25,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:25,556 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:25,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 03:06:25,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:25,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:25,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:06:25,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:25,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:25,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:25,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:06:25,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:06:25,591 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:06:25,594 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 03:06:25,595 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 03:06:25,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:25,598 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:25,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 03:06:25,605 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:06:25,605 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 03:06:25,606 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:06:25,606 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-28 03:06:25,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:25,619 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 03:06:25,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:25,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:25,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:25,673 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:25,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:25,678 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-28 03:06:25,679 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,692 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 9 states and 10 transitions. Complement of second has 5 states. [2024-11-28 03:06:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:06:25,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-28 03:06:25,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-28 03:06:25,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:25,697 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 03:06:25,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:25,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:25,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:25,748 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:25,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:25,753 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-28 03:06:25,753 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 9 states and 10 transitions. Complement of second has 5 states. [2024-11-28 03:06:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:06:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-28 03:06:25,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-28 03:06:25,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:25,766 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 03:06:25,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:25,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:25,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:25,811 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:25,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:25,816 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-28 03:06:25,816 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,828 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 11 states and 13 transitions. Complement of second has 4 states. [2024-11-28 03:06:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:06:25,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-28 03:06:25,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-28 03:06:25,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:25,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2024-11-28 03:06:25,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:25,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-28 03:06:25,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:25,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2024-11-28 03:06:25,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:06:25,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2024-11-28 03:06:25,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-28 03:06:25,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 03:06:25,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2024-11-28 03:06:25,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:06:25,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2024-11-28 03:06:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2024-11-28 03:06:25,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-28 03:06:25,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2024-11-28 03:06:25,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2024-11-28 03:06:25,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:06:25,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:06:25,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:06:25,834 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:25,872 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2024-11-28 03:06:25,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 24 transitions. [2024-11-28 03:06:25,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:06:25,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 20 transitions. [2024-11-28 03:06:25,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-28 03:06:25,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-28 03:06:25,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 20 transitions. [2024-11-28 03:06:25,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:06:25,874 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-28 03:06:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 20 transitions. [2024-11-28 03:06:25,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2024-11-28 03:06:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-28 03:06:25,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-28 03:06:25,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:06:25,879 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-28 03:06:25,879 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 03:06:25,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 19 transitions. [2024-11-28 03:06:25,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:06:25,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:06:25,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:06:25,880 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 1, 1] [2024-11-28 03:06:25,880 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:06:25,880 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:25,880 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:25,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:25,880 INFO L85 PathProgramCache]: Analyzing trace with hash 74166791, now seen corresponding path program 2 times [2024-11-28 03:06:25,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:25,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102590613] [2024-11-28 03:06:25,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:25,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:25,901 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:25,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:25,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:25,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1403, now seen corresponding path program 1 times [2024-11-28 03:06:25,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:25,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877947223] [2024-11-28 03:06:25,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:25,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:25,921 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:25,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:25,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1740157439, now seen corresponding path program 3 times [2024-11-28 03:06:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362487981] [2024-11-28 03:06:25,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:25,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:25,940 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:25,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:25,986 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:06:25,986 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:06:25,986 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:06:25,986 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:06:25,987 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 03:06:25,987 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:25,987 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:06:25,987 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:06:25,987 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration3_Loop [2024-11-28 03:06:25,987 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:06:25,987 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:06:25,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:25,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:25,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:26,045 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:06:26,046 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 03:06:26,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,048 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 03:06:26,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:26,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:26,078 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:06:26,079 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:06:26,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 03:06:26,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,090 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 03:06:26,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:26,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:26,114 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 03:06:26,114 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 03:06:26,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-28 03:06:26,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,122 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 03:06:26,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:26,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:26,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-28 03:06:26,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,152 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 03:06:26,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:06:26,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:26,195 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 03:06:26,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:26,200 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:06:26,200 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:06:26,200 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:06:26,200 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:06:26,200 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:06:26,200 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,200 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:06:26,200 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:06:26,200 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration3_Loop [2024-11-28 03:06:26,200 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:06:26,200 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:06:26,201 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:26,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:26,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:26,260 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:06:26,260 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:06:26,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,263 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 03:06:26,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:26,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:26,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:26,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:26,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:26,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:06:26,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:06:26,292 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:06:26,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:26,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,304 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 03:06:26,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:26,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:26,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:26,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:26,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:26,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 03:06:26,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 03:06:26,331 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 03:06:26,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-28 03:06:26,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,345 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 03:06:26,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:26,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:26,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:06:26,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:26,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:26,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:26,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:06:26,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:06:26,367 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:06:26,370 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 03:06:26,370 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 03:06:26,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:26,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,374 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 03:06:26,380 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:06:26,381 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 03:06:26,381 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:06:26,381 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 99 Supporting invariants [] [2024-11-28 03:06:26,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:26,392 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 03:06:26,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:26,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:26,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:26,473 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:26,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:26,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:26,503 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:06:26,503 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:26,523 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 30 transitions. Complement of second has 5 states. [2024-11-28 03:06:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:06:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-28 03:06:26,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 13 letters. Loop has 2 letters. [2024-11-28 03:06:26,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:26,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 15 letters. Loop has 2 letters. [2024-11-28 03:06:26,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:26,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 13 letters. Loop has 4 letters. [2024-11-28 03:06:26,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:26,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2024-11-28 03:06:26,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:06:26,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 23 transitions. [2024-11-28 03:06:26,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-28 03:06:26,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-28 03:06:26,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2024-11-28 03:06:26,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:06:26,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-28 03:06:26,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2024-11-28 03:06:26,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2024-11-28 03:06:26,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:26,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2024-11-28 03:06:26,530 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 22 transitions. [2024-11-28 03:06:26,530 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2024-11-28 03:06:26,530 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 03:06:26,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions. [2024-11-28 03:06:26,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-28 03:06:26,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:06:26,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:06:26,531 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 6, 1, 1, 1] [2024-11-28 03:06:26,531 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:06:26,531 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:26,531 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:26,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:26,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1549020231, now seen corresponding path program 2 times [2024-11-28 03:06:26,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:26,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413968952] [2024-11-28 03:06:26,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:26,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:26,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-28 03:06:26,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-28 03:06:26,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:06:26,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413968952] [2024-11-28 03:06:26,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413968952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:26,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141644657] [2024-11-28 03:06:26,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:26,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:26,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:26,793 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:26,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 03:06:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:26,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:06:26,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:26,870 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:06:27,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141644657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:06:27,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:06:27,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-28 03:06:27,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564110947] [2024-11-28 03:06:27,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:06:27,021 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 03:06:27,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:27,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1403, now seen corresponding path program 2 times [2024-11-28 03:06:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:27,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869852924] [2024-11-28 03:06:27,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:27,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:27,025 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:27,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:27,064 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:06:27,065 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:06:27,065 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:06:27,065 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:06:27,065 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 03:06:27,065 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:27,065 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:06:27,065 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:06:27,065 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration4_Loop [2024-11-28 03:06:27,065 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:06:27,065 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:06:27,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:27,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:27,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:27,116 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:06:27,116 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 03:06:27,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:27,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:27,119 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:27,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 03:06:27,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 03:06:27,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:27,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-28 03:06:27,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:27,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:27,152 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:27,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-28 03:06:27,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 03:06:27,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 03:06:27,184 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 03:06:27,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-28 03:06:27,187 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 03:06:27,187 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 03:06:27,187 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 03:06:27,187 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 03:06:27,187 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 03:06:27,187 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:27,187 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 03:06:27,187 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 03:06:27,187 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration4_Loop [2024-11-28 03:06:27,187 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 03:06:27,188 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 03:06:27,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:27,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:27,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 03:06:27,245 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 03:06:27,245 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 03:06:27,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:27,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:27,247 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:27,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-28 03:06:27,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 03:06:27,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 03:06:27,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 03:06:27,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 03:06:27,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 03:06:27,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 03:06:27,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 03:06:27,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 03:06:27,269 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 03:06:27,273 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 03:06:27,273 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 03:06:27,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:06:27,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:27,275 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:06:27,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-28 03:06:27,279 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 03:06:27,280 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 03:06:27,280 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 03:06:27,280 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 99 Supporting invariants [] [2024-11-28 03:06:27,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-28 03:06:27,290 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 03:06:27,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:27,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:27,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:27,365 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:27,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:27,389 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:06:27,389 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,406 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5. 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 26 states and 30 transitions. Complement of second has 5 states. [2024-11-28 03:06:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:06:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-28 03:06:27,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 17 letters. Loop has 2 letters. [2024-11-28 03:06:27,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:27,410 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 03:06:27,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:27,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:27,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:27,473 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:27,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:27,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:27,490 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:06:27,491 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,514 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5. 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 27 states and 31 transitions. Complement of second has 5 states. [2024-11-28 03:06:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:06:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-28 03:06:27,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 17 letters. Loop has 2 letters. [2024-11-28 03:06:27,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:27,516 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 03:06:27,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:27,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:06:27,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:27,586 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:06:27,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:06:27,607 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 03:06:27,607 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,620 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5. 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 28 states and 33 transitions. Complement of second has 4 states. [2024-11-28 03:06:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 03:06:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-28 03:06:27,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 2 letters. [2024-11-28 03:06:27,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:27,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 19 letters. Loop has 2 letters. [2024-11-28 03:06:27,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:27,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 17 letters. Loop has 4 letters. [2024-11-28 03:06:27,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 03:06:27,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2024-11-28 03:06:27,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-28 03:06:27,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 24 transitions. [2024-11-28 03:06:27,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-28 03:06:27,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-28 03:06:27,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2024-11-28 03:06:27,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:06:27,625 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-28 03:06:27,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2024-11-28 03:06:27,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2024-11-28 03:06:27,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-28 03:06:27,627 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-28 03:06:27,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:06:27,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:06:27,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:06:27,628 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:27,691 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2024-11-28 03:06:27,691 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 45 transitions. [2024-11-28 03:06:27,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 03:06:27,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 35 states and 37 transitions. [2024-11-28 03:06:27,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-28 03:06:27,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-28 03:06:27,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 37 transitions. [2024-11-28 03:06:27,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:06:27,693 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 37 transitions. [2024-11-28 03:06:27,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 37 transitions. [2024-11-28 03:06:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2024-11-28 03:06:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:27,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-11-28 03:06:27,696 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-11-28 03:06:27,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:06:27,698 INFO L425 stractBuchiCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-11-28 03:06:27,698 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 03:06:27,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 36 transitions. [2024-11-28 03:06:27,699 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 03:06:27,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:06:27,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:06:27,700 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [16, 14, 1, 1, 1] [2024-11-28 03:06:27,700 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-11-28 03:06:27,700 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:27,700 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:27,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash 590599561, now seen corresponding path program 3 times [2024-11-28 03:06:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:27,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469352180] [2024-11-28 03:06:27,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:27,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:27,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-28 03:06:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:06:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469352180] [2024-11-28 03:06:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469352180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969447772] [2024-11-28 03:06:28,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:28,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:28,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:28,164 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:28,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 03:06:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:28,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:06:28,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:28,311 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:06:28,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969447772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:06:28,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:06:28,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 32 [2024-11-28 03:06:28,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998675089] [2024-11-28 03:06:28,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:06:28,845 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 03:06:28,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1348787, now seen corresponding path program 1 times [2024-11-28 03:06:28,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:28,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770395897] [2024-11-28 03:06:28,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:28,851 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:28,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:28,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:06:28,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 03:06:28,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:06:28,895 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. cyclomatic complexity: 3 Second operand has 32 states, 32 states have (on average 2.0) internal successors, (64), 32 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:29,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:29,054 INFO L93 Difference]: Finished difference Result 83 states and 85 transitions. [2024-11-28 03:06:29,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 85 transitions. [2024-11-28 03:06:29,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 03:06:29,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 67 states and 69 transitions. [2024-11-28 03:06:29,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-28 03:06:29,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-28 03:06:29,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 69 transitions. [2024-11-28 03:06:29,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:06:29,061 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 69 transitions. [2024-11-28 03:06:29,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 69 transitions. [2024-11-28 03:06:29,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2024-11-28 03:06:29,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 65 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:29,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2024-11-28 03:06:29,070 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-11-28 03:06:29,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 03:06:29,072 INFO L425 stractBuchiCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-11-28 03:06:29,072 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 03:06:29,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 68 transitions. [2024-11-28 03:06:29,073 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 03:06:29,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:06:29,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:06:29,078 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [32, 30, 1, 1, 1] [2024-11-28 03:06:29,078 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-11-28 03:06:29,079 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:29,079 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:29,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:29,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1026226473, now seen corresponding path program 4 times [2024-11-28 03:06:29,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:29,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233060237] [2024-11-28 03:06:29,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:29,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:30,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:06:30,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233060237] [2024-11-28 03:06:30,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233060237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:06:30,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105877524] [2024-11-28 03:06:30,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:30,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:06:30,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:06:30,249 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:06:30,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 03:06:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:06:30,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 03:06:30,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:06:30,491 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:06:31,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105877524] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:06:31,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:06:31,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 52 [2024-11-28 03:06:31,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805902131] [2024-11-28 03:06:31,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:06:31,892 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 03:06:31,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:31,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1348787, now seen corresponding path program 2 times [2024-11-28 03:06:31,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:31,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186920116] [2024-11-28 03:06:31,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:31,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:31,897 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:31,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:31,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:06:31,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-28 03:06:31,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 03:06:31,930 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. cyclomatic complexity: 3 Second operand has 52 states, 52 states have (on average 2.019230769230769) internal successors, (105), 52 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:06:32,135 INFO L93 Difference]: Finished difference Result 127 states and 129 transitions. [2024-11-28 03:06:32,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 127 states and 129 transitions. [2024-11-28 03:06:32,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 03:06:32,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 127 states to 107 states and 109 transitions. [2024-11-28 03:06:32,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-28 03:06:32,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-28 03:06:32,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 109 transitions. [2024-11-28 03:06:32,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 03:06:32,139 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 109 transitions. [2024-11-28 03:06:32,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 109 transitions. [2024-11-28 03:06:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-11-28 03:06:32,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 106 states have (on average 1.0188679245283019) internal successors, (108), 105 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:06:32,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2024-11-28 03:06:32,145 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 108 transitions. [2024-11-28 03:06:32,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-28 03:06:32,146 INFO L425 stractBuchiCegarLoop]: Abstraction has 106 states and 108 transitions. [2024-11-28 03:06:32,146 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-28 03:06:32,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 108 transitions. [2024-11-28 03:06:32,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 03:06:32,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:06:32,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:06:32,150 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [52, 50, 1, 1, 1] [2024-11-28 03:06:32,150 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-11-28 03:06:32,151 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:32,151 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < 100;" "assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 < 100;" [2024-11-28 03:06:32,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:32,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1470807631, now seen corresponding path program 5 times [2024-11-28 03:06:32,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:32,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889411958] [2024-11-28 03:06:32,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:32,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:32,205 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:32,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:32,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:32,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1348787, now seen corresponding path program 3 times [2024-11-28 03:06:32,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:32,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963399217] [2024-11-28 03:06:32,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:32,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:32,249 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:32,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:32,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:06:32,251 INFO L85 PathProgramCache]: Analyzing trace with hash 328302179, now seen corresponding path program 6 times [2024-11-28 03:06:32,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:06:32,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544387638] [2024-11-28 03:06:32,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:06:32,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:06:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:32,283 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:32,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:06:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:34,161 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:06:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:06:34,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:06:34 BoogieIcfgContainer [2024-11-28 03:06:34,297 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 03:06:34,298 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:06:34,298 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:06:34,298 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:06:34,299 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:23" (3/4) ... [2024-11-28 03:06:34,301 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 03:06:34,385 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:06:34,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:06:34,386 INFO L158 Benchmark]: Toolchain (without parser) took 11716.72ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 92.5MB in the beginning and 63.0MB in the end (delta: 29.5MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2024-11-28 03:06:34,387 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:34,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.66ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 82.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:06:34,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.50ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:34,388 INFO L158 Benchmark]: Boogie Preprocessor took 33.64ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.7MB in the end (delta: 944.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:06:34,388 INFO L158 Benchmark]: RCFGBuilder took 279.12ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 72.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:06:34,389 INFO L158 Benchmark]: BuchiAutomizer took 11038.24ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 72.5MB in the beginning and 67.7MB in the end (delta: 4.9MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2024-11-28 03:06:34,391 INFO L158 Benchmark]: Witness Printer took 87.49ms. Allocated memory is still 176.2MB. Free memory was 67.7MB in the beginning and 63.0MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:06:34,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 72.4MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.66ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 82.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.50ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.64ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.7MB in the end (delta: 944.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.12ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 72.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 11038.24ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 72.5MB in the beginning and 67.7MB in the end (delta: 4.9MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * Witness Printer took 87.49ms. Allocated memory is still 176.2MB. Free memory was 67.7MB in the beginning and 63.0MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. 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 9 terminating modules (5 trivial, 2 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * i) + 99) and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 99) and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 52 locations. The remainder module has 106 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.8s and 7 iterations. TraceHistogramMax:52. Analysis of lassos took 9.3s. Construction of modules took 0.3s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 9 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 44 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT2 SILN2 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = 0 VAL [i=0] [L9] COND TRUE i < 100 VAL [i=0] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=1] [L9] COND TRUE i < 100 VAL [i=1] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=2] [L9] COND TRUE i < 100 VAL [i=2] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=3] [L9] COND TRUE i < 100 VAL [i=3] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=4] [L9] COND TRUE i < 100 VAL [i=4] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=5] [L9] COND TRUE i < 100 VAL [i=5] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=6] [L9] COND TRUE i < 100 VAL [i=6] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=7] [L9] COND TRUE i < 100 VAL [i=7] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=8] [L9] COND TRUE i < 100 VAL [i=8] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=9] [L9] COND TRUE i < 100 VAL [i=9] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=10] [L9] COND TRUE i < 100 VAL [i=10] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=11] [L9] COND TRUE i < 100 VAL [i=11] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=12] [L9] COND TRUE i < 100 VAL [i=12] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=13] [L9] COND TRUE i < 100 VAL [i=13] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=14] [L9] COND TRUE i < 100 VAL [i=14] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=15] [L9] COND TRUE i < 100 VAL [i=15] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=16] [L9] COND TRUE i < 100 VAL [i=16] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=17] [L9] COND TRUE i < 100 VAL [i=17] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=18] [L9] COND TRUE i < 100 VAL [i=18] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=19] [L9] COND TRUE i < 100 VAL [i=19] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=20] [L9] COND TRUE i < 100 VAL [i=20] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=21] [L9] COND TRUE i < 100 VAL [i=21] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=22] [L9] COND TRUE i < 100 VAL [i=22] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=23] [L9] COND TRUE i < 100 VAL [i=23] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=24] [L9] COND TRUE i < 100 VAL [i=24] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=25] [L9] COND TRUE i < 100 VAL [i=25] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=26] [L9] COND TRUE i < 100 VAL [i=26] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=27] [L9] COND TRUE i < 100 VAL [i=27] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=28] [L9] COND TRUE i < 100 VAL [i=28] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=29] [L9] COND TRUE i < 100 VAL [i=29] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=30] [L9] COND TRUE i < 100 VAL [i=30] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=31] [L9] COND TRUE i < 100 VAL [i=31] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=32] [L9] COND TRUE i < 100 VAL [i=32] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=33] [L9] COND TRUE i < 100 VAL [i=33] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=34] [L9] COND TRUE i < 100 VAL [i=34] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=35] [L9] COND TRUE i < 100 VAL [i=35] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=36] [L9] COND TRUE i < 100 VAL [i=36] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=37] [L9] COND TRUE i < 100 VAL [i=37] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=38] [L9] COND TRUE i < 100 VAL [i=38] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=39] [L9] COND TRUE i < 100 VAL [i=39] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=40] [L9] COND TRUE i < 100 VAL [i=40] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=41] [L9] COND TRUE i < 100 VAL [i=41] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=42] [L9] COND TRUE i < 100 VAL [i=42] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=43] [L9] COND TRUE i < 100 VAL [i=43] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=44] [L9] COND TRUE i < 100 VAL [i=44] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=45] [L9] COND TRUE i < 100 VAL [i=45] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=46] [L9] COND TRUE i < 100 VAL [i=46] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=47] [L9] COND TRUE i < 100 VAL [i=47] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=48] [L9] COND TRUE i < 100 VAL [i=48] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=50] [L9] COND TRUE i < 100 VAL [i=50] [L10] COND FALSE !(i < 50) [L11] i = i-1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] Loop: [L10] COND TRUE i < 50 [L10] i = i+1 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = i-1 [L9] COND TRUE i < 100 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 VAL [i=0] [L9] COND TRUE i < 100 VAL [i=0] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=1] [L9] COND TRUE i < 100 VAL [i=1] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=2] [L9] COND TRUE i < 100 VAL [i=2] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=3] [L9] COND TRUE i < 100 VAL [i=3] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=4] [L9] COND TRUE i < 100 VAL [i=4] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=5] [L9] COND TRUE i < 100 VAL [i=5] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=6] [L9] COND TRUE i < 100 VAL [i=6] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=7] [L9] COND TRUE i < 100 VAL [i=7] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=8] [L9] COND TRUE i < 100 VAL [i=8] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=9] [L9] COND TRUE i < 100 VAL [i=9] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=10] [L9] COND TRUE i < 100 VAL [i=10] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=11] [L9] COND TRUE i < 100 VAL [i=11] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=12] [L9] COND TRUE i < 100 VAL [i=12] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=13] [L9] COND TRUE i < 100 VAL [i=13] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=14] [L9] COND TRUE i < 100 VAL [i=14] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=15] [L9] COND TRUE i < 100 VAL [i=15] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=16] [L9] COND TRUE i < 100 VAL [i=16] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=17] [L9] COND TRUE i < 100 VAL [i=17] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=18] [L9] COND TRUE i < 100 VAL [i=18] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=19] [L9] COND TRUE i < 100 VAL [i=19] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=20] [L9] COND TRUE i < 100 VAL [i=20] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=21] [L9] COND TRUE i < 100 VAL [i=21] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=22] [L9] COND TRUE i < 100 VAL [i=22] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=23] [L9] COND TRUE i < 100 VAL [i=23] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=24] [L9] COND TRUE i < 100 VAL [i=24] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=25] [L9] COND TRUE i < 100 VAL [i=25] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=26] [L9] COND TRUE i < 100 VAL [i=26] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=27] [L9] COND TRUE i < 100 VAL [i=27] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=28] [L9] COND TRUE i < 100 VAL [i=28] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=29] [L9] COND TRUE i < 100 VAL [i=29] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=30] [L9] COND TRUE i < 100 VAL [i=30] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=31] [L9] COND TRUE i < 100 VAL [i=31] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=32] [L9] COND TRUE i < 100 VAL [i=32] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=33] [L9] COND TRUE i < 100 VAL [i=33] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=34] [L9] COND TRUE i < 100 VAL [i=34] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=35] [L9] COND TRUE i < 100 VAL [i=35] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=36] [L9] COND TRUE i < 100 VAL [i=36] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=37] [L9] COND TRUE i < 100 VAL [i=37] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=38] [L9] COND TRUE i < 100 VAL [i=38] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=39] [L9] COND TRUE i < 100 VAL [i=39] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=40] [L9] COND TRUE i < 100 VAL [i=40] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=41] [L9] COND TRUE i < 100 VAL [i=41] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=42] [L9] COND TRUE i < 100 VAL [i=42] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=43] [L9] COND TRUE i < 100 VAL [i=43] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=44] [L9] COND TRUE i < 100 VAL [i=44] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=45] [L9] COND TRUE i < 100 VAL [i=45] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=46] [L9] COND TRUE i < 100 VAL [i=46] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=47] [L9] COND TRUE i < 100 VAL [i=47] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=48] [L9] COND TRUE i < 100 VAL [i=48] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=50] [L9] COND TRUE i < 100 VAL [i=50] [L10] COND FALSE !(i < 50) [L11] i = i-1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] Loop: [L10] COND TRUE i < 50 [L10] i = i+1 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = i-1 [L9] COND TRUE i < 100 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:06:34,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:34,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 03:06:34,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 03:06:35,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:35,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:06:35,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c331598-f2e7-4490-b9c7-bc48e214b537/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)