./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:33:39,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:33:39,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:33:39,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:33:39,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:33:39,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:33:39,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:33:39,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:33:39,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:33:39,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:33:39,660 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:33:39,661 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:33:39,661 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:33:39,664 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:33:39,664 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:33:39,665 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:33:39,665 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:33:39,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:33:39,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:33:39,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:33:39,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:33:39,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:33:39,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:33:39,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:33:39,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:33:39,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:33:39,675 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:33:39,676 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:33:39,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:33:39,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:33:39,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:33:39,679 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:33:39,680 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:33:39,680 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 [2023-11-06 22:33:40,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:33:40,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:33:40,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:33:40,052 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:33:40,052 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:33:40,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/Ex08.c [2023-11-06 22:33:43,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:33:43,817 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:33:43,818 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/sv-benchmarks/c/termination-restricted-15/Ex08.c [2023-11-06 22:33:43,826 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/data/0b156d88e/c63fadc88d65443ab12df89e49a409d3/FLAG6d9ff4494 [2023-11-06 22:33:43,842 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/data/0b156d88e/c63fadc88d65443ab12df89e49a409d3 [2023-11-06 22:33:43,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:33:43,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:33:43,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:33:43,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:33:43,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:33:43,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:33:43" (1/1) ... [2023-11-06 22:33:43,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce8c169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:43, skipping insertion in model container [2023-11-06 22:33:43,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:33:43" (1/1) ... [2023-11-06 22:33:43,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:33:44,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:33:44,034 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:33:44,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:33:44,064 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:33:44,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44 WrapperNode [2023-11-06 22:33:44,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:33:44,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:33:44,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:33:44,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:33:44,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,101 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-06 22:33:44,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:33:44,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:33:44,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:33:44,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:33:44,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:33:44,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:33:44,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:33:44,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:33:44,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (1/1) ... [2023-11-06 22:33:44,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:44,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:44,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:44,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:33:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:33:44,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:33:44,337 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:33:44,340 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:33:44,463 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:33:44,482 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:33:44,482 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:33:44,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:44 BoogieIcfgContainer [2023-11-06 22:33:44,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:33:44,489 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:33:44,489 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:33:44,494 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:33:44,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:33:44,496 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:33:43" (1/3) ... [2023-11-06 22:33:44,498 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71dab580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:33:44, skipping insertion in model container [2023-11-06 22:33:44,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:33:44,498 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:44" (2/3) ... [2023-11-06 22:33:44,501 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71dab580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:33:44, skipping insertion in model container [2023-11-06 22:33:44,502 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:33:44,502 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:44" (3/3) ... [2023-11-06 22:33:44,507 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex08.c [2023-11-06 22:33:44,604 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:33:44,604 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:33:44,604 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:33:44,604 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:33:44,605 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:33:44,605 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:33:44,607 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:33:44,607 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:33:44,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:44,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:33:44,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:44,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:44,642 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:33:44,642 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:44,642 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:33:44,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:44,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:33:44,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:44,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:44,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:33:44,648 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:44,658 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4#L18-1true [2023-11-06 22:33:44,659 INFO L750 eck$LassoCheckResult]: Loop: 4#L18-1true assume !!(main_~i~0#1 > 0); 10#L12true assume !(1 == main_~i~0#1); 2#L12-2true assume 10 == main_~i~0#1;main_~up~0#1 := 0; 7#L15-1true assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4#L18-1true [2023-11-06 22:33:44,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:33:44,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:44,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441292707] [2023-11-06 22:33:44,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:44,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:44,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:44,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:44,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:44,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2023-11-06 22:33:44,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:44,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918513844] [2023-11-06 22:33:44,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:44,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:45,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:45,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918513844] [2023-11-06 22:33:45,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918513844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:45,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:45,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:33:45,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812748597] [2023-11-06 22:33:45,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:45,029 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:33:45,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:45,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:33:45,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:33:45,085 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:45,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:45,118 INFO L93 Difference]: Finished difference Result 16 states and 22 transitions. [2023-11-06 22:33:45,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2023-11-06 22:33:45,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 22:33:45,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 10 states and 15 transitions. [2023-11-06 22:33:45,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-06 22:33:45,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-06 22:33:45,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2023-11-06 22:33:45,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:33:45,135 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-06 22:33:45,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2023-11-06 22:33:45,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-06 22:33:45,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 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) [2023-11-06 22:33:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2023-11-06 22:33:45,171 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-06 22:33:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:33:45,180 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-06 22:33:45,180 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:33:45,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2023-11-06 22:33:45,182 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 22:33:45,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:45,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:45,183 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:33:45,184 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:45,184 INFO L748 eck$LassoCheckResult]: Stem: 40#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 42#L18-1 [2023-11-06 22:33:45,186 INFO L750 eck$LassoCheckResult]: Loop: 42#L18-1 assume !!(main_~i~0#1 > 0); 44#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 35#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 36#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 42#L18-1 [2023-11-06 22:33:45,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-06 22:33:45,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:45,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879541645] [2023-11-06 22:33:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:45,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:45,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:45,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:45,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:45,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1265324, now seen corresponding path program 1 times [2023-11-06 22:33:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:45,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443937704] [2023-11-06 22:33:45,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:45,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:45,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:45,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443937704] [2023-11-06 22:33:45,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443937704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:45,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:45,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:33:45,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180131017] [2023-11-06 22:33:45,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:45,284 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:33:45,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:45,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:33:45,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:33:45,286 INFO L87 Difference]: Start difference. First operand 10 states and 15 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:45,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:45,318 INFO L93 Difference]: Finished difference Result 14 states and 21 transitions. [2023-11-06 22:33:45,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2023-11-06 22:33:45,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-06 22:33:45,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 21 transitions. [2023-11-06 22:33:45,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-06 22:33:45,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-06 22:33:45,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2023-11-06 22:33:45,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:33:45,325 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-06 22:33:45,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2023-11-06 22:33:45,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-06 22:33:45,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2023-11-06 22:33:45,329 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-06 22:33:45,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:33:45,331 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-06 22:33:45,332 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:33:45,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2023-11-06 22:33:45,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-06 22:33:45,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:45,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:45,334 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:33:45,335 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:45,335 INFO L748 eck$LassoCheckResult]: Stem: 69#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 70#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 72#L18-1 [2023-11-06 22:33:45,336 INFO L750 eck$LassoCheckResult]: Loop: 72#L18-1 assume !!(main_~i~0#1 > 0); 77#L12 assume !(1 == main_~i~0#1); 76#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 71#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 72#L18-1 [2023-11-06 22:33:45,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-06 22:33:45,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206075611] [2023-11-06 22:33:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:45,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:45,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:45,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:45,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1267246, now seen corresponding path program 1 times [2023-11-06 22:33:45,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:45,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716265237] [2023-11-06 22:33:45,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:45,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:45,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:45,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:45,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:45,409 INFO L85 PathProgramCache]: Analyzing trace with hash 889694448, now seen corresponding path program 1 times [2023-11-06 22:33:45,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:45,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360239958] [2023-11-06 22:33:45,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:45,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:45,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:45,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:45,569 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:45,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:45,570 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:45,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:45,571 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:45,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:45,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:45,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:45,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration3_Loop [2023-11-06 22:33:45,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:45,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:45,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:45,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:45,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:45,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:45,769 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:45,770 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:45,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:45,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:45,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:45,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:45,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:45,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:33:45,832 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:45,833 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:45,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:45,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:45,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:45,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:45,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:45,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:45,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:33:45,893 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:45,893 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:45,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:45,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:45,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:45,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:45,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:45,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:45,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:33:45,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:45,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:45,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:45,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:45,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:45,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:45,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:45,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:45,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:33:46,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:46,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:46,025 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:46,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:46,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:46,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:33:46,063 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:33:46,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:46,072 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:46,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:46,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:46,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:46,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:33:46,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:46,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:46,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration3_Loop [2023-11-06 22:33:46,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:46,075 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:46,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:46,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:46,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:46,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:46,154 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:46,160 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:33:46,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:46,163 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:46,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:46,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:33:46,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:46,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:46,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:46,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:46,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:46,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:46,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:46,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:46,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:46,249 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:46,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:46,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:46,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:46,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:46,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:46,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:33:46,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:46,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:46,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:46,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:46,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:46,321 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:46,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:46,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:33:46,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:46,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:46,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:46,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:46,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:46,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:33:46,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:46,369 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:33:46,374 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:33:46,374 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:33:46,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:46,408 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:46,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:33:46,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:33:46,412 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:33:46,412 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:33:46,413 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:33:46,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:46,421 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:33:46,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:46,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:46,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:46,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:46,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:46,508 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:33:46,510 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:46,622 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 51 transitions. Complement of second has 7 states. [2023-11-06 22:33:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:46,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-06 22:33:46,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-06 22:33:46,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:46,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-06 22:33:46,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:46,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-06 22:33:46,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:46,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 51 transitions. [2023-11-06 22:33:46,633 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2023-11-06 22:33:46,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 30 states and 44 transitions. [2023-11-06 22:33:46,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2023-11-06 22:33:46,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-11-06 22:33:46,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 44 transitions. [2023-11-06 22:33:46,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:46,636 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 44 transitions. [2023-11-06 22:33:46,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 44 transitions. [2023-11-06 22:33:46,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2023-11-06 22:33:46,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 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) [2023-11-06 22:33:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2023-11-06 22:33:46,642 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2023-11-06 22:33:46,642 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2023-11-06 22:33:46,642 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:33:46,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 36 transitions. [2023-11-06 22:33:46,644 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2023-11-06 22:33:46,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:46,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:46,645 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:33:46,645 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:46,645 INFO L748 eck$LassoCheckResult]: Stem: 164#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 167#L18-1 assume !!(main_~i~0#1 > 0); 161#L12 [2023-11-06 22:33:46,646 INFO L750 eck$LassoCheckResult]: Loop: 161#L12 assume !(1 == main_~i~0#1); 177#L12-2 assume !(10 == main_~i~0#1); 166#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 160#L18-1 assume !!(main_~i~0#1 > 0); 161#L12 [2023-11-06 22:33:46,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:46,647 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 22:33:46,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:46,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980168651] [2023-11-06 22:33:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:46,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:46,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:46,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:46,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:46,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1422198, now seen corresponding path program 1 times [2023-11-06 22:33:46,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:46,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63146665] [2023-11-06 22:33:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:46,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:46,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:46,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:46,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:46,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1810726045, now seen corresponding path program 1 times [2023-11-06 22:33:46,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:46,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178804647] [2023-11-06 22:33:46,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:46,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:46,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:46,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:46,740 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:46,740 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:46,741 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:46,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:46,741 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:46,741 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:46,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:46,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2023-11-06 22:33:46,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:46,743 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:46,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:46,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:46,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:46,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:46,906 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:46,906 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:46,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:46,912 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:46,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:33:46,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:46,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:46,938 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:46,939 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:46,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:46,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:46,950 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:46,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:33:46,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:46,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:46,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:46,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:46,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:46,993 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:46,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:46,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:47,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:33:47,078 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:33:47,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-06 22:33:47,084 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:47,084 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:47,084 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:47,084 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:47,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:33:47,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:47,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:47,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:47,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2023-11-06 22:33:47,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:47,085 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:47,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:47,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:47,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:47,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:47,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:47,259 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:33:47,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:47,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:47,261 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:47,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:33:47,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:47,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:47,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:47,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:47,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:47,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:47,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:47,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:47,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:47,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:47,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:47,323 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:47,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:47,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:33:47,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:47,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:47,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:47,350 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:33:47,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:47,353 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:33:47,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:47,364 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:33:47,368 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-06 22:33:47,368 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:33:47,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:47,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:47,375 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:47,382 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:33:47,383 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:33:47,383 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:33:47,383 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:33:47,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:33:47,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:47,396 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:33:47,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:47,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:47,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:47,444 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:47,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:47,505 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:33:47,505 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 36 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 1.75) 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) [2023-11-06 22:33:47,565 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 36 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 1.75) 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) Result 41 states and 59 transitions. Complement of second has 7 states. [2023-11-06 22:33:47,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) 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) [2023-11-06 22:33:47,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-06 22:33:47,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-06 22:33:47,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:47,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-06 22:33:47,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:47,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-06 22:33:47,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:47,577 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 59 transitions. [2023-11-06 22:33:47,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-06 22:33:47,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 32 states and 49 transitions. [2023-11-06 22:33:47,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-06 22:33:47,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-06 22:33:47,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2023-11-06 22:33:47,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:47,591 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-06 22:33:47,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2023-11-06 22:33:47,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-06 22:33:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 49 transitions. [2023-11-06 22:33:47,606 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-06 22:33:47,606 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-06 22:33:47,606 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:33:47,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 49 transitions. [2023-11-06 22:33:47,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-06 22:33:47,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:47,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:47,611 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:33:47,611 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:47,611 INFO L748 eck$LassoCheckResult]: Stem: 273#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 274#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 277#L18-1 assume !!(main_~i~0#1 > 0); 280#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 281#L12-2 assume !(10 == main_~i~0#1); 287#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 288#L18-1 [2023-11-06 22:33:47,611 INFO L750 eck$LassoCheckResult]: Loop: 288#L18-1 assume !!(main_~i~0#1 > 0); 295#L12 assume !(1 == main_~i~0#1); 289#L12-2 assume !(10 == main_~i~0#1); 290#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 288#L18-1 [2023-11-06 22:33:47,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:47,612 INFO L85 PathProgramCache]: Analyzing trace with hash 889692586, now seen corresponding path program 1 times [2023-11-06 22:33:47,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:47,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018389177] [2023-11-06 22:33:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:47,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:47,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:47,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:47,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:47,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1267306, now seen corresponding path program 1 times [2023-11-06 22:33:47,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:47,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046985577] [2023-11-06 22:33:47,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:47,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:47,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:47,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:47,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:47,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1068497811, now seen corresponding path program 1 times [2023-11-06 22:33:47,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:47,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622559477] [2023-11-06 22:33:47,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:47,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:47,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:47,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:47,754 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:47,754 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:47,754 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:47,754 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:47,755 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:47,755 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:47,755 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:47,755 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:47,755 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Loop [2023-11-06 22:33:47,755 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:47,756 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:47,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:47,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:47,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:47,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:47,919 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:47,919 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:47,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:47,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:47,921 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:47,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:47,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:47,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:33:47,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:47,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:47,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:47,975 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:47,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:47,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:33:48,026 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:48,026 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=14} Honda state: {ULTIMATE.start_main_~i~0#1=14} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~i~0#1=1}, {ULTIMATE.start_main_~i~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 1] [2023-11-06 22:33:48,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,039 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:33:48,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:48,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,075 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:48,075 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:48,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,090 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:33:48,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:48,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,120 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:48,121 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:48,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,127 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:48,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:33:48,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:48,176 INFO L440 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: [] [2023-11-06 22:33:48,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,238 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:48,238 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:48,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:48,239 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:48,239 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:48,239 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,239 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:48,239 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:48,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Lasso [2023-11-06 22:33:48,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:48,240 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:48,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,446 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:48,446 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:48,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,448 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:48,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:33:48,479 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:48,479 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:48,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,491 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:48,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:33:48,525 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:48,525 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:48,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,536 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:48,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:33:48,579 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:48,580 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:48,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,591 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:48,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:33:48,631 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:48,632 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:48,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,639 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:48,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:33:48,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,681 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:48,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:48,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:33:48,728 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:33:48,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:48,741 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:48,741 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:48,741 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:48,742 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:48,742 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:33:48,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:48,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:48,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Lasso [2023-11-06 22:33:48,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:48,742 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:48,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:48,953 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:48,954 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:33:48,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:48,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:48,958 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:48,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:48,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 22:33:48,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:48,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:48,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:48,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:48,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:48,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:49,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:49,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:49,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:49,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:49,018 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:49,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:49,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 22:33:49,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:49,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:49,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:49,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:49,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:49,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:33:49,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:49,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:49,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:49,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:49,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:49,066 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:49,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:49,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-06 22:33:49,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:49,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:49,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:49,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:49,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:49,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:49,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:49,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:49,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:49,110 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:49,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:49,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:49,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-06 22:33:49,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:49,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:49,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:49,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:49,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:33:49,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:49,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:49,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:49,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:49,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:49,163 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:49,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:49,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-06 22:33:49,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:49,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:49,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:49,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:49,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:49,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:49,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:49,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:49,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:49,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:49,214 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:49,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:49,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-06 22:33:49,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:49,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:49,234 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:33:49,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:49,244 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-06 22:33:49,244 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-06 22:33:49,275 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:33:49,309 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2023-11-06 22:33:49,309 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-06 22:33:49,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:49,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:49,312 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:49,320 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:33:49,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-06 22:33:49,365 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-11-06 22:33:49,365 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:33:49,366 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 21 Supporting invariants [-1*ULTIMATE.start_main_~i~0#1 + 10 >= 0] [2023-11-06 22:33:49,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:49,382 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 22:33:49,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:49,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:49,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:49,480 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:33:49,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:49,559 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-06 22:33:49,560 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 49 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:49,700 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 49 transitions. cyclomatic complexity: 21. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 68 transitions. Complement of second has 8 states. [2023-11-06 22:33:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:49,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:49,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-11-06 22:33:49,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-06 22:33:49,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:49,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-06 22:33:49,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:49,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2023-11-06 22:33:49,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:49,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 68 transitions. [2023-11-06 22:33:49,713 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-06 22:33:49,715 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 45 states and 67 transitions. [2023-11-06 22:33:49,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-06 22:33:49,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-11-06 22:33:49,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 67 transitions. [2023-11-06 22:33:49,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:49,718 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 67 transitions. [2023-11-06 22:33:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 67 transitions. [2023-11-06 22:33:49,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2023-11-06 22:33:49,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 41 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) [2023-11-06 22:33:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2023-11-06 22:33:49,730 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions. [2023-11-06 22:33:49,730 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions. [2023-11-06 22:33:49,731 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:33:49,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions. [2023-11-06 22:33:49,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-06 22:33:49,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:49,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:49,732 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:33:49,733 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:49,733 INFO L748 eck$LassoCheckResult]: Stem: 416#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 417#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 420#L18-1 assume !!(main_~i~0#1 > 0); 429#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 426#L12-2 assume !(10 == main_~i~0#1); 425#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 424#L18-1 assume !!(main_~i~0#1 > 0); 421#L12 assume !(1 == main_~i~0#1); 422#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 447#L15-1 [2023-11-06 22:33:49,733 INFO L750 eck$LassoCheckResult]: Loop: 447#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 446#L18-1 assume !!(main_~i~0#1 > 0); 444#L12 assume !(1 == main_~i~0#1); 445#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 447#L15-1 [2023-11-06 22:33:49,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash 588656997, now seen corresponding path program 1 times [2023-11-06 22:33:49,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:49,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025887508] [2023-11-06 22:33:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:49,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:49,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:49,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:49,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025887508] [2023-11-06 22:33:49,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025887508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:33:49,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955569487] [2023-11-06 22:33:49,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:49,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:33:49,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:49,812 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:33:49,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-06 22:33:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:49,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:33:49,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:49,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:33:49,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:49,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955569487] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:33:49,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:33:49,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:33:49,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38898778] [2023-11-06 22:33:49,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:33:49,893 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:33:49,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:49,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1768756, now seen corresponding path program 2 times [2023-11-06 22:33:49,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:49,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022102790] [2023-11-06 22:33:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:49,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:49,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:49,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:49,944 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:49,944 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:49,944 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:49,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:49,945 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:49,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:49,945 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:49,945 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:49,945 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration6_Loop [2023-11-06 22:33:49,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:49,946 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:49,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:49,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:49,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:49,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,042 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:50,042 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:50,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:50,046 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:50,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:50,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:50,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-06 22:33:50,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:50,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:50,084 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:50,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:50,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:50,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-06 22:33:50,120 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:33:50,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:50,130 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:50,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:50,130 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:50,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:50,131 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:33:50,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:50,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:50,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration6_Loop [2023-11-06 22:33:50,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:50,131 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:50,132 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,150 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,232 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:50,233 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:33:50,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:50,234 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:50,239 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:50,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-06 22:33:50,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:50,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:50,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:50,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:50,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:50,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:33:50,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:50,266 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:33:50,269 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-06 22:33:50,269 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:33:50,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:50,271 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:50,277 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:33:50,277 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:33:50,277 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:33:50,277 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:33:50,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-06 22:33:50,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:50,288 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:33:50,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:50,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:50,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:50,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:50,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:50,358 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:33:50,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:50,396 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 105 states and 160 transitions. Complement of second has 7 states. [2023-11-06 22:33:50,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:50,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-06 22:33:50,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-06 22:33:50,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:50,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-06 22:33:50,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:50,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-06 22:33:50,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:50,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 160 transitions. [2023-11-06 22:33:50,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-06 22:33:50,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 87 states and 133 transitions. [2023-11-06 22:33:50,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-06 22:33:50,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2023-11-06 22:33:50,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 133 transitions. [2023-11-06 22:33:50,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:50,406 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 133 transitions. [2023-11-06 22:33:50,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 133 transitions. [2023-11-06 22:33:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2023-11-06 22:33:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.548780487804878) internal successors, (127), 81 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions. [2023-11-06 22:33:50,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 127 transitions. [2023-11-06 22:33:50,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:50,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:33:50,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:33:50,416 INFO L87 Difference]: Start difference. First operand 82 states and 127 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 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) [2023-11-06 22:33:50,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:50,483 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2023-11-06 22:33:50,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 239 transitions. [2023-11-06 22:33:50,489 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2023-11-06 22:33:50,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 239 transitions. [2023-11-06 22:33:50,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2023-11-06 22:33:50,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2023-11-06 22:33:50,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 239 transitions. [2023-11-06 22:33:50,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:50,494 INFO L218 hiAutomatonCegarLoop]: Abstraction has 160 states and 239 transitions. [2023-11-06 22:33:50,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 239 transitions. [2023-11-06 22:33:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2023-11-06 22:33:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 136 states have (on average 1.5220588235294117) internal successors, (207), 135 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:50,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 207 transitions. [2023-11-06 22:33:50,515 INFO L240 hiAutomatonCegarLoop]: Abstraction has 136 states and 207 transitions. [2023-11-06 22:33:50,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:33:50,520 INFO L428 stractBuchiCegarLoop]: Abstraction has 136 states and 207 transitions. [2023-11-06 22:33:50,520 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:33:50,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 207 transitions. [2023-11-06 22:33:50,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2023-11-06 22:33:50,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:50,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:50,523 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:33:50,523 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:50,523 INFO L748 eck$LassoCheckResult]: Stem: 918#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 919#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 922#L18-1 assume !!(main_~i~0#1 > 0); 933#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 931#L12-2 assume !(10 == main_~i~0#1); 926#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 927#L18-1 assume !!(main_~i~0#1 > 0); 1005#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 979#L12-2 assume !(10 == main_~i~0#1); 1007#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 985#L18-1 [2023-11-06 22:33:50,524 INFO L750 eck$LassoCheckResult]: Loop: 985#L18-1 assume !!(main_~i~0#1 > 0); 995#L12 assume !(1 == main_~i~0#1); 968#L12-2 assume !(10 == main_~i~0#1); 990#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 985#L18-1 [2023-11-06 22:33:50,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:50,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1068495891, now seen corresponding path program 1 times [2023-11-06 22:33:50,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:50,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842476688] [2023-11-06 22:33:50,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:50,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:50,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:50,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842476688] [2023-11-06 22:33:50,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842476688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:50,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:50,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:33:50,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390919604] [2023-11-06 22:33:50,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:50,569 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:33:50,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:50,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1267308, now seen corresponding path program 2 times [2023-11-06 22:33:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:50,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154020984] [2023-11-06 22:33:50,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:50,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:50,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:50,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:50,615 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:50,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:50,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:50,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:50,615 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:50,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:50,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:50,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2023-11-06 22:33:50,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:50,616 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:50,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,632 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,743 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:50,743 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:50,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:50,745 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:50,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:50,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:50,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-06 22:33:50,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:50,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:50,782 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:50,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:50,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:50,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-06 22:33:50,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:33:50,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:50,835 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:50,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:50,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:50,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:50,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:33:50,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:50,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:50,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2023-11-06 22:33:50,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:50,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:50,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:50,976 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:50,976 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:33:50,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:50,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:50,978 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:50,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-06 22:33:50,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:51,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:51,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:51,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:51,000 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:33:51,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:51,003 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:33:51,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:51,014 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:33:51,019 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:33:51,019 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:33:51,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:51,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:51,027 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:51,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-06 22:33:51,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:51,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:51,057 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:33:51,058 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:33:51,058 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:33:51,058 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:33:51,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:51,063 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:33:51,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:51,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:51,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:51,134 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:51,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:51,189 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:33:51,189 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 136 states and 207 transitions. cyclomatic complexity: 82 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:51,236 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 136 states and 207 transitions. cyclomatic complexity: 82. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 248 states and 381 transitions. Complement of second has 5 states. [2023-11-06 22:33:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:51,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:51,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-06 22:33:51,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-06 22:33:51,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:51,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-06 22:33:51,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:51,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 8 letters. [2023-11-06 22:33:51,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:51,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 381 transitions. [2023-11-06 22:33:51,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2023-11-06 22:33:51,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 224 states and 333 transitions. [2023-11-06 22:33:51,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2023-11-06 22:33:51,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 112 [2023-11-06 22:33:51,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 333 transitions. [2023-11-06 22:33:51,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:51,266 INFO L218 hiAutomatonCegarLoop]: Abstraction has 224 states and 333 transitions. [2023-11-06 22:33:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 333 transitions. [2023-11-06 22:33:51,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 202. [2023-11-06 22:33:51,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 202 states have (on average 1.504950495049505) internal successors, (304), 201 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 304 transitions. [2023-11-06 22:33:51,298 INFO L240 hiAutomatonCegarLoop]: Abstraction has 202 states and 304 transitions. [2023-11-06 22:33:51,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:51,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:33:51,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:33:51,299 INFO L87 Difference]: Start difference. First operand 202 states and 304 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:51,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:51,333 INFO L93 Difference]: Finished difference Result 230 states and 313 transitions. [2023-11-06 22:33:51,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 313 transitions. [2023-11-06 22:33:51,337 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2023-11-06 22:33:51,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 230 states and 313 transitions. [2023-11-06 22:33:51,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2023-11-06 22:33:51,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2023-11-06 22:33:51,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 230 states and 313 transitions. [2023-11-06 22:33:51,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:51,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 230 states and 313 transitions. [2023-11-06 22:33:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states and 313 transitions. [2023-11-06 22:33:51,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 201. [2023-11-06 22:33:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.3830845771144278) internal successors, (278), 200 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:51,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2023-11-06 22:33:51,372 INFO L240 hiAutomatonCegarLoop]: Abstraction has 201 states and 278 transitions. [2023-11-06 22:33:51,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:33:51,375 INFO L428 stractBuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2023-11-06 22:33:51,375 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 22:33:51,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 278 transitions. [2023-11-06 22:33:51,378 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2023-11-06 22:33:51,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:51,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:51,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:33:51,380 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:33:51,380 INFO L748 eck$LassoCheckResult]: Stem: 1796#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1797#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1800#L18-1 assume !!(main_~i~0#1 > 0); 1816#L12 assume !(1 == main_~i~0#1); 1819#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1818#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1814#L18-1 assume !!(main_~i~0#1 > 0); 1815#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 1940#L12-2 assume !(10 == main_~i~0#1); 1824#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1803#L18-1 assume !!(main_~i~0#1 > 0); 1804#L12 assume !(1 == main_~i~0#1); 1986#L12-2 assume !(10 == main_~i~0#1); 1807#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1791#L18-1 [2023-11-06 22:33:51,381 INFO L750 eck$LassoCheckResult]: Loop: 1791#L18-1 assume !!(main_~i~0#1 > 0); 1792#L12 assume !(1 == main_~i~0#1); 1801#L12-2 assume !(10 == main_~i~0#1); 1808#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1791#L18-1 [2023-11-06 22:33:51,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:51,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1454758974, now seen corresponding path program 1 times [2023-11-06 22:33:51,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:51,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979632683] [2023-11-06 22:33:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:51,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:33:51,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:51,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979632683] [2023-11-06 22:33:51,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979632683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:51,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:51,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:33:51,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117324900] [2023-11-06 22:33:51,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:51,461 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:33:51,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:51,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1267308, now seen corresponding path program 3 times [2023-11-06 22:33:51,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:51,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098005820] [2023-11-06 22:33:51,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:51,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:51,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:51,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:51,528 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:51,528 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:51,528 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:51,528 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:51,529 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:51,529 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:51,529 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:51,529 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:51,529 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2023-11-06 22:33:51,529 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:51,530 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:51,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:51,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:51,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:51,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:51,673 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:51,674 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:51,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:51,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:51,680 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:51,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:51,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:51,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-06 22:33:51,715 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:51,716 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_12=1} Honda state: {v_rep~unnamed0~0~true_12=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:51,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:51,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:51,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:51,721 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:51,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:51,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:51,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-06 22:33:51,759 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:51,760 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=4} Honda state: {ULTIMATE.start_main_~up~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:51,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:51,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:51,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:51,765 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:51,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:51,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:51,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-06 22:33:51,811 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:51,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_12=0} Honda state: {v_rep~unnamed0~0~false_12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:51,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:51,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:51,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:51,817 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:51,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:51,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:51,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-06 22:33:51,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:51,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:51,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:51,861 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:51,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:51,866 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:51,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-06 22:33:51,911 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:33:51,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:51,915 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:51,916 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:51,916 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:51,916 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:51,916 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:33:51,916 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:51,916 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:51,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:51,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2023-11-06 22:33:51,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:51,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:51,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:51,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:51,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:51,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:52,072 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:52,072 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:33:52,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:52,074 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:52,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:52,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-06 22:33:52,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:52,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:52,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:52,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:52,098 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:52,098 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:52,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:52,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:52,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:52,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:52,116 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:52,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:52,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-06 22:33:52,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:52,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:52,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:52,138 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:33:52,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:52,139 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:33:52,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:52,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:52,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:52,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:52,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:52,154 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:52,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:52,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-06 22:33:52,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:52,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:52,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:52,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:52,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:52,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:52,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:52,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:52,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:52,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:52,202 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:52,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:52,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-06 22:33:52,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:52,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:52,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:52,222 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:33:52,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:52,224 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:33:52,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:52,247 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:33:52,252 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:33:52,252 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:33:52,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:52,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:52,254 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:52,260 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:33:52,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:33:52,260 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:33:52,261 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-06 22:33:52,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-06 22:33:52,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:52,268 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:33:52,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:52,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,349 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:52,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:52,384 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:33:52,384 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,419 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 280 states and 401 transitions. Complement of second has 5 states. [2023-11-06 22:33:52,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:52,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-06 22:33:52,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-06 22:33:52,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:52,422 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:33:52,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:52,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,481 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:52,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:52,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:52,512 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:33:52,513 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,541 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 280 states and 401 transitions. Complement of second has 5 states. [2023-11-06 22:33:52,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-06 22:33:52,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-06 22:33:52,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:52,544 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:33:52,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:52,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,599 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:52,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:52,628 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:33:52,629 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 334 states and 496 transitions. Complement of second has 4 states. [2023-11-06 22:33:52,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2023-11-06 22:33:52,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-06 22:33:52,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:52,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 18 letters. Loop has 4 letters. [2023-11-06 22:33:52,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:52,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 8 letters. [2023-11-06 22:33:52,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:52,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 334 states and 496 transitions. [2023-11-06 22:33:52,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2023-11-06 22:33:52,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 334 states to 268 states and 378 transitions. [2023-11-06 22:33:52,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2023-11-06 22:33:52,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2023-11-06 22:33:52,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 378 transitions. [2023-11-06 22:33:52,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:52,687 INFO L218 hiAutomatonCegarLoop]: Abstraction has 268 states and 378 transitions. [2023-11-06 22:33:52,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 378 transitions. [2023-11-06 22:33:52,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 167. [2023-11-06 22:33:52,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.401197604790419) internal successors, (234), 166 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 234 transitions. [2023-11-06 22:33:52,700 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 234 transitions. [2023-11-06 22:33:52,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:52,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:33:52,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:33:52,702 INFO L87 Difference]: Start difference. First operand 167 states and 234 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:52,736 INFO L93 Difference]: Finished difference Result 179 states and 246 transitions. [2023-11-06 22:33:52,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 246 transitions. [2023-11-06 22:33:52,738 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2023-11-06 22:33:52,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 177 states and 243 transitions. [2023-11-06 22:33:52,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2023-11-06 22:33:52,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2023-11-06 22:33:52,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 243 transitions. [2023-11-06 22:33:52,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:52,741 INFO L218 hiAutomatonCegarLoop]: Abstraction has 177 states and 243 transitions. [2023-11-06 22:33:52,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 243 transitions. [2023-11-06 22:33:52,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 170. [2023-11-06 22:33:52,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 170 states have (on average 1.3764705882352941) internal successors, (234), 169 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 234 transitions. [2023-11-06 22:33:52,747 INFO L240 hiAutomatonCegarLoop]: Abstraction has 170 states and 234 transitions. [2023-11-06 22:33:52,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:33:52,748 INFO L428 stractBuchiCegarLoop]: Abstraction has 170 states and 234 transitions. [2023-11-06 22:33:52,748 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-06 22:33:52,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 170 states and 234 transitions. [2023-11-06 22:33:52,750 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2023-11-06 22:33:52,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:52,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:52,751 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:33:52,751 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1] [2023-11-06 22:33:52,752 INFO L748 eck$LassoCheckResult]: Stem: 3427#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3428#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3432#L18-1 assume !!(main_~i~0#1 > 0); 3546#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3533#L12-2 assume !(10 == main_~i~0#1); 3435#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3436#L18-1 assume !!(main_~i~0#1 > 0); 3553#L12 assume !(1 == main_~i~0#1); 3545#L12-2 assume !(10 == main_~i~0#1); 3543#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3440#L18-1 [2023-11-06 22:33:52,752 INFO L750 eck$LassoCheckResult]: Loop: 3440#L18-1 assume !!(main_~i~0#1 > 0); 3536#L12 assume !(1 == main_~i~0#1); 3474#L12-2 assume !(10 == main_~i~0#1); 3532#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3530#L18-1 assume !!(main_~i~0#1 > 0); 3528#L12 assume !(1 == main_~i~0#1); 3525#L12-2 assume !(10 == main_~i~0#1); 3438#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3440#L18-1 [2023-11-06 22:33:52,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:52,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1068497813, now seen corresponding path program 1 times [2023-11-06 22:33:52,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:52,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022137157] [2023-11-06 22:33:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:52,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:33:52,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:52,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022137157] [2023-11-06 22:33:52,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022137157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:52,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:52,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:33:52,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045232322] [2023-11-06 22:33:52,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:52,776 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:33:52,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:52,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2142023595, now seen corresponding path program 1 times [2023-11-06 22:33:52,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:52,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197779127] [2023-11-06 22:33:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:52,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:33:52,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:52,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197779127] [2023-11-06 22:33:52,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197779127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:52,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:52,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:33:52,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897207081] [2023-11-06 22:33:52,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:52,797 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:33:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:52,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:33:52,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:33:52,798 INFO L87 Difference]: Start difference. First operand 170 states and 234 transitions. cyclomatic complexity: 73 Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:52,808 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2023-11-06 22:33:52,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 118 transitions. [2023-11-06 22:33:52,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2023-11-06 22:33:52,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 84 states and 95 transitions. [2023-11-06 22:33:52,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-06 22:33:52,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2023-11-06 22:33:52,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 95 transitions. [2023-11-06 22:33:52,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:52,812 INFO L218 hiAutomatonCegarLoop]: Abstraction has 84 states and 95 transitions. [2023-11-06 22:33:52,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states and 95 transitions. [2023-11-06 22:33:52,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2023-11-06 22:33:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 81 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2023-11-06 22:33:52,815 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-11-06 22:33:52,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:33:52,816 INFO L428 stractBuchiCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-11-06 22:33:52,817 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-06 22:33:52,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 93 transitions. [2023-11-06 22:33:52,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2023-11-06 22:33:52,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:52,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:52,819 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 1, 1, 1, 1] [2023-11-06 22:33:52,820 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 5, 4, 2, 1, 1] [2023-11-06 22:33:52,820 INFO L748 eck$LassoCheckResult]: Stem: 3709#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3710#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3713#L18-1 assume !!(main_~i~0#1 > 0); 3740#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3734#L12-2 assume !(10 == main_~i~0#1); 3733#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3732#L18-1 assume !!(main_~i~0#1 > 0); 3731#L12 assume !(1 == main_~i~0#1); 3730#L12-2 assume !(10 == main_~i~0#1); 3729#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3728#L18-1 assume !!(main_~i~0#1 > 0); 3727#L12 assume !(1 == main_~i~0#1); 3726#L12-2 assume !(10 == main_~i~0#1); 3725#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3724#L18-1 assume !!(main_~i~0#1 > 0); 3721#L12 assume !(1 == main_~i~0#1); 3723#L12-2 assume !(10 == main_~i~0#1); 3722#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3720#L18-1 assume !!(main_~i~0#1 > 0); 3719#L12 assume !(1 == main_~i~0#1); 3718#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3711#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3707#L18-1 assume !!(main_~i~0#1 > 0); 3708#L12 assume !(1 == main_~i~0#1); 3702#L12-2 assume !(10 == main_~i~0#1); 3704#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3712#L18-1 assume !!(main_~i~0#1 > 0); 3714#L12 [2023-11-06 22:33:52,820 INFO L750 eck$LassoCheckResult]: Loop: 3714#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3700#L12-2 assume !(10 == main_~i~0#1); 3701#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3705#L18-1 assume !!(main_~i~0#1 > 0); 3706#L12 assume !(1 == main_~i~0#1); 3781#L12-2 assume !(10 == main_~i~0#1); 3780#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3779#L18-1 assume !!(main_~i~0#1 > 0); 3778#L12 assume !(1 == main_~i~0#1); 3777#L12-2 assume !(10 == main_~i~0#1); 3776#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3775#L18-1 assume !!(main_~i~0#1 > 0); 3774#L12 assume !(1 == main_~i~0#1); 3773#L12-2 assume !(10 == main_~i~0#1); 3748#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3744#L18-1 assume !!(main_~i~0#1 > 0); 3736#L12 assume !(1 == main_~i~0#1); 3737#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3715#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3716#L18-1 assume !!(main_~i~0#1 > 0); 3708#L12 assume !(1 == main_~i~0#1); 3702#L12-2 assume !(10 == main_~i~0#1); 3704#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3712#L18-1 assume !!(main_~i~0#1 > 0); 3714#L12 [2023-11-06 22:33:52,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash -608617554, now seen corresponding path program 2 times [2023-11-06 22:33:52,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:52,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632254930] [2023-11-06 22:33:52,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:52,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:33:52,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:52,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632254930] [2023-11-06 22:33:52,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632254930] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:33:52,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948184907] [2023-11-06 22:33:52,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:33:52,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:33:52,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:52,924 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:33:52,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-06 22:33:52,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:33:52,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:33:52,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:33:52,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:33:53,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:33:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:33:53,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948184907] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:33:53,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:33:53,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2023-11-06 22:33:53,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444295440] [2023-11-06 22:33:53,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:33:53,112 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:33:53,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:53,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1118663673, now seen corresponding path program 1 times [2023-11-06 22:33:53,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:53,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631049422] [2023-11-06 22:33:53,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:53,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:53,239 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:33:53,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:53,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631049422] [2023-11-06 22:33:53,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631049422] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:33:53,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859341464] [2023-11-06 22:33:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:53,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:33:53,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:53,242 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:33:53,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-06 22:33:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:53,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:33:53,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:33:53,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:33:53,440 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:33:53,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859341464] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:33:53,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:33:53,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-06 22:33:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727583034] [2023-11-06 22:33:53,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:33:53,446 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:33:53,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:33:53,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:33:53,447 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. cyclomatic complexity: 17 Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:53,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:53,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:53,551 INFO L93 Difference]: Finished difference Result 169 states and 180 transitions. [2023-11-06 22:33:53,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 180 transitions. [2023-11-06 22:33:53,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2023-11-06 22:33:53,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 149 states and 160 transitions. [2023-11-06 22:33:53,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2023-11-06 22:33:53,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-11-06 22:33:53,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 160 transitions. [2023-11-06 22:33:53,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:53,555 INFO L218 hiAutomatonCegarLoop]: Abstraction has 149 states and 160 transitions. [2023-11-06 22:33:53,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 160 transitions. [2023-11-06 22:33:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 142. [2023-11-06 22:33:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.0774647887323943) internal successors, (153), 141 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2023-11-06 22:33:53,559 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142 states and 153 transitions. [2023-11-06 22:33:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:33:53,560 INFO L428 stractBuchiCegarLoop]: Abstraction has 142 states and 153 transitions. [2023-11-06 22:33:53,560 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-06 22:33:53,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 153 transitions. [2023-11-06 22:33:53,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 46 [2023-11-06 22:33:53,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:53,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:53,564 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 10, 9, 2, 1, 1, 1, 1] [2023-11-06 22:33:53,564 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 9, 2, 1, 1] [2023-11-06 22:33:53,564 INFO L748 eck$LassoCheckResult]: Stem: 4276#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4277#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4280#L18-1 assume !!(main_~i~0#1 > 0); 4382#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 4268#L12-2 assume !(10 == main_~i~0#1); 4269#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4368#L18-1 assume !!(main_~i~0#1 > 0); 4367#L12 assume !(1 == main_~i~0#1); 4366#L12-2 assume !(10 == main_~i~0#1); 4365#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4364#L18-1 assume !!(main_~i~0#1 > 0); 4363#L12 assume !(1 == main_~i~0#1); 4362#L12-2 assume !(10 == main_~i~0#1); 4361#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4360#L18-1 assume !!(main_~i~0#1 > 0); 4359#L12 assume !(1 == main_~i~0#1); 4358#L12-2 assume !(10 == main_~i~0#1); 4357#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4356#L18-1 assume !!(main_~i~0#1 > 0); 4355#L12 assume !(1 == main_~i~0#1); 4354#L12-2 assume !(10 == main_~i~0#1); 4353#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4352#L18-1 assume !!(main_~i~0#1 > 0); 4351#L12 assume !(1 == main_~i~0#1); 4350#L12-2 assume !(10 == main_~i~0#1); 4349#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4348#L18-1 assume !!(main_~i~0#1 > 0); 4347#L12 assume !(1 == main_~i~0#1); 4346#L12-2 assume !(10 == main_~i~0#1); 4345#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4344#L18-1 assume !!(main_~i~0#1 > 0); 4343#L12 assume !(1 == main_~i~0#1); 4342#L12-2 assume !(10 == main_~i~0#1); 4341#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4340#L18-1 assume !!(main_~i~0#1 > 0); 4290#L12 assume !(1 == main_~i~0#1); 4294#L12-2 assume !(10 == main_~i~0#1); 4291#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4289#L18-1 assume !!(main_~i~0#1 > 0); 4288#L12 assume !(1 == main_~i~0#1); 4287#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4278#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4279#L18-1 assume !!(main_~i~0#1 > 0); 4336#L12 assume !(1 == main_~i~0#1); 4338#L12-2 assume !(10 == main_~i~0#1); 4337#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4335#L18-1 assume !!(main_~i~0#1 > 0); 4334#L12 [2023-11-06 22:33:53,564 INFO L750 eck$LassoCheckResult]: Loop: 4334#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 4333#L12-2 assume !(10 == main_~i~0#1); 4332#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4331#L18-1 assume !!(main_~i~0#1 > 0); 4330#L12 assume !(1 == main_~i~0#1); 4329#L12-2 assume !(10 == main_~i~0#1); 4328#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4327#L18-1 assume !!(main_~i~0#1 > 0); 4326#L12 assume !(1 == main_~i~0#1); 4325#L12-2 assume !(10 == main_~i~0#1); 4324#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4323#L18-1 assume !!(main_~i~0#1 > 0); 4322#L12 assume !(1 == main_~i~0#1); 4321#L12-2 assume !(10 == main_~i~0#1); 4320#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4319#L18-1 assume !!(main_~i~0#1 > 0); 4318#L12 assume !(1 == main_~i~0#1); 4317#L12-2 assume !(10 == main_~i~0#1); 4316#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4315#L18-1 assume !!(main_~i~0#1 > 0); 4314#L12 assume !(1 == main_~i~0#1); 4313#L12-2 assume !(10 == main_~i~0#1); 4312#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4311#L18-1 assume !!(main_~i~0#1 > 0); 4310#L12 assume !(1 == main_~i~0#1); 4309#L12-2 assume !(10 == main_~i~0#1); 4308#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4307#L18-1 assume !!(main_~i~0#1 > 0); 4306#L12 assume !(1 == main_~i~0#1); 4305#L12-2 assume !(10 == main_~i~0#1); 4304#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4303#L18-1 assume !!(main_~i~0#1 > 0); 4302#L12 assume !(1 == main_~i~0#1); 4301#L12-2 assume !(10 == main_~i~0#1); 4299#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4295#L18-1 assume !!(main_~i~0#1 > 0); 4292#L12 assume !(1 == main_~i~0#1); 4293#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4284#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4285#L18-1 assume !!(main_~i~0#1 > 0); 4336#L12 assume !(1 == main_~i~0#1); 4338#L12-2 assume !(10 == main_~i~0#1); 4337#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4335#L18-1 assume !!(main_~i~0#1 > 0); 4334#L12 [2023-11-06 22:33:53,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:53,565 INFO L85 PathProgramCache]: Analyzing trace with hash -733322943, now seen corresponding path program 3 times [2023-11-06 22:33:53,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:53,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228780684] [2023-11-06 22:33:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:53,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:53,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:53,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:53,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:53,589 INFO L85 PathProgramCache]: Analyzing trace with hash 491326234, now seen corresponding path program 2 times [2023-11-06 22:33:53,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:53,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195135951] [2023-11-06 22:33:53,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:53,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:53,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:53,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:53,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:53,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1133081510, now seen corresponding path program 4 times [2023-11-06 22:33:53,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:53,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225138224] [2023-11-06 22:33:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:53,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-06 22:33:53,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:53,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225138224] [2023-11-06 22:33:53,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225138224] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:33:53,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122578188] [2023-11-06 22:33:53,727 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:33:53,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:33:53,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:53,729 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:33:53,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-06 22:33:53,812 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:33:53,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:33:53,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:33:53,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-06 22:33:53,840 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:33:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-06 22:33:53,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122578188] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:33:53,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:33:53,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-11-06 22:33:53,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054044760] [2023-11-06 22:33:53,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:33:54,125 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:54,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:54,126 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:54,126 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:54,126 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:54,126 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,126 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:54,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:54,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2023-11-06 22:33:54,127 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:54,127 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:54,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:54,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:54,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:54,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:54,197 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:54,197 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:54,199 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:54,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:54,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:54,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-06 22:33:54,234 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:54,234 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_14=1} Honda state: {v_rep~unnamed0~0~true_14=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:54,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:54,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:54,240 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:54,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:54,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:54,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-06 22:33:54,280 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:54,280 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_14=0} Honda state: {v_rep~unnamed0~0~false_14=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:54,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:54,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:54,286 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:54,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:54,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:54,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-06 22:33:54,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:54,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:54,325 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:54,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:54,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:54,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-06 22:33:54,370 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:33:54,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:54,374 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:54,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:54,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:54,375 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:54,375 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:33:54,375 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,375 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:54,375 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:54,375 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2023-11-06 22:33:54,375 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:54,375 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:54,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:54,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:54,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:54,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:54,452 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:54,452 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:33:54,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:54,454 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:54,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:54,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-06 22:33:54,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:54,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:54,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:54,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:54,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:54,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:54,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:54,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:54,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:54,502 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:54,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:54,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-06 22:33:54,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:54,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:54,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:54,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:54,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:54,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:54,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:54,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:54,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:54,549 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:54,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:54,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-06 22:33:54,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:54,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:54,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:54,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:54,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:54,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:33:54,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:54,591 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:33:54,594 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:33:54,594 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:33:54,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:54,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:54,598 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:54,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-06 22:33:54,601 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:33:54,601 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:33:54,601 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:33:54,601 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2023-11-06 22:33:54,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-11-06 22:33:54,605 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:33:54,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:54,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:54,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:54,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:33:54,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:33:54,956 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-06 22:33:54,956 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:55,011 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) Result 228 states and 242 transitions. Complement of second has 7 states. [2023-11-06 22:33:55,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:55,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-06 22:33:55,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-06 22:33:55,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:55,014 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:33:55,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:55,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:55,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:55,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:33:55,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:33:55,331 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-06 22:33:55,331 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:55,417 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) Result 238 states and 253 transitions. Complement of second has 11 states. [2023-11-06 22:33:55,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:55,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:55,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2023-11-06 22:33:55,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-06 22:33:55,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:55,419 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:33:55,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:55,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:55,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:55,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:55,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:33:55,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:33:55,770 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 5 loop predicates [2023-11-06 22:33:55,770 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:55,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) Result 268 states and 284 transitions. Complement of second has 9 states. [2023-11-06 22:33:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-06 22:33:55,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-06 22:33:55,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:55,829 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:33:55,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:55,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:55,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:55,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:33:55,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:33:56,100 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-06 22:33:56,100 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:56,189 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) Result 380 states and 401 transitions. Complement of second has 19 states. [2023-11-06 22:33:56,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:56,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2023-11-06 22:33:56,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-06 22:33:56,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:56,193 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:33:56,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:56,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:56,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:56,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:33:56,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:33:56,459 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-06 22:33:56,460 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:56,739 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) Result 1899 states and 2480 transitions. Complement of second has 166 states 20 powerset states146 rank states. The highest rank that occured is 5 [2023-11-06 22:33:56,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:56,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) [2023-11-06 22:33:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 70 transitions. [2023-11-06 22:33:56,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-06 22:33:56,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:56,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 91 letters. Loop has 44 letters. [2023-11-06 22:33:56,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:56,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 47 letters. Loop has 88 letters. [2023-11-06 22:33:56,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:56,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1899 states and 2480 transitions. [2023-11-06 22:33:56,788 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 96 [2023-11-06 22:33:56,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1899 states to 956 states and 1245 transitions. [2023-11-06 22:33:56,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 100 [2023-11-06 22:33:56,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2023-11-06 22:33:56,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 956 states and 1245 transitions. [2023-11-06 22:33:56,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:56,800 INFO L218 hiAutomatonCegarLoop]: Abstraction has 956 states and 1245 transitions. [2023-11-06 22:33:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states and 1245 transitions. [2023-11-06 22:33:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 564. [2023-11-06 22:33:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 564 states have (on average 1.3953900709219857) internal successors, (787), 563 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 787 transitions. [2023-11-06 22:33:56,819 INFO L240 hiAutomatonCegarLoop]: Abstraction has 564 states and 787 transitions. [2023-11-06 22:33:56,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:56,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:33:56,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:33:56,820 INFO L87 Difference]: Start difference. First operand 564 states and 787 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:56,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:33:56,881 INFO L93 Difference]: Finished difference Result 692 states and 978 transitions. [2023-11-06 22:33:56,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 978 transitions. [2023-11-06 22:33:56,889 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 98 [2023-11-06 22:33:56,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 675 states and 954 transitions. [2023-11-06 22:33:56,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2023-11-06 22:33:56,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2023-11-06 22:33:56,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 675 states and 954 transitions. [2023-11-06 22:33:56,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:33:56,897 INFO L218 hiAutomatonCegarLoop]: Abstraction has 675 states and 954 transitions. [2023-11-06 22:33:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states and 954 transitions. [2023-11-06 22:33:56,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 634. [2023-11-06 22:33:56,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 634 states have (on average 1.411671924290221) internal successors, (895), 633 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:56,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 895 transitions. [2023-11-06 22:33:56,915 INFO L240 hiAutomatonCegarLoop]: Abstraction has 634 states and 895 transitions. [2023-11-06 22:33:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:33:56,932 INFO L428 stractBuchiCegarLoop]: Abstraction has 634 states and 895 transitions. [2023-11-06 22:33:56,932 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-11-06 22:33:56,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 634 states and 895 transitions. [2023-11-06 22:33:56,937 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 90 [2023-11-06 22:33:56,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:33:56,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:33:56,943 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [16, 14, 14, 9, 6, 1, 1, 1, 1] [2023-11-06 22:33:56,943 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [15, 14, 14, 9, 6, 1, 1] [2023-11-06 22:33:56,945 INFO L748 eck$LassoCheckResult]: Stem: 10858#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 10859#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 10863#L18-1 assume !!(main_~i~0#1 > 0); 11194#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 11045#L12-2 assume !(10 == main_~i~0#1); 11186#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11185#L18-1 assume !!(main_~i~0#1 > 0); 11183#L12 assume !(1 == main_~i~0#1); 11181#L12-2 assume !(10 == main_~i~0#1); 11179#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11177#L18-1 assume !!(main_~i~0#1 > 0); 11175#L12 assume !(1 == main_~i~0#1); 11173#L12-2 assume !(10 == main_~i~0#1); 11171#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11169#L18-1 assume !!(main_~i~0#1 > 0); 11167#L12 assume !(1 == main_~i~0#1); 11165#L12-2 assume !(10 == main_~i~0#1); 11163#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11161#L18-1 assume !!(main_~i~0#1 > 0); 11159#L12 assume !(1 == main_~i~0#1); 11157#L12-2 assume !(10 == main_~i~0#1); 11155#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11153#L18-1 assume !!(main_~i~0#1 > 0); 11151#L12 assume !(1 == main_~i~0#1); 11149#L12-2 assume !(10 == main_~i~0#1); 11147#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11145#L18-1 assume !!(main_~i~0#1 > 0); 11143#L12 assume !(1 == main_~i~0#1); 11141#L12-2 assume !(10 == main_~i~0#1); 11139#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11137#L18-1 assume !!(main_~i~0#1 > 0); 11135#L12 assume !(1 == main_~i~0#1); 11133#L12-2 assume !(10 == main_~i~0#1); 11131#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11127#L18-1 assume !!(main_~i~0#1 > 0); 11125#L12 assume !(1 == main_~i~0#1); 11123#L12-2 assume !(10 == main_~i~0#1); 11119#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11120#L18-1 assume !!(main_~i~0#1 > 0); 11128#L12 assume !(1 == main_~i~0#1); 11111#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11070#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11109#L18-1 assume !!(main_~i~0#1 > 0); 11108#L12 assume !(1 == main_~i~0#1); 11107#L12-2 assume !(10 == main_~i~0#1); 11105#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11104#L18-1 assume !!(main_~i~0#1 > 0); 11103#L12 assume !(1 == main_~i~0#1); 11102#L12-2 assume !(10 == main_~i~0#1); 11100#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11099#L18-1 assume !!(main_~i~0#1 > 0); 11098#L12 assume !(1 == main_~i~0#1); 11097#L12-2 assume !(10 == main_~i~0#1); 11095#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11094#L18-1 assume !!(main_~i~0#1 > 0); 11093#L12 assume !(1 == main_~i~0#1); 11092#L12-2 assume !(10 == main_~i~0#1); 11090#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11089#L18-1 assume !!(main_~i~0#1 > 0); 11042#L12 assume !(1 == main_~i~0#1); 11069#L12-2 assume !(10 == main_~i~0#1); 11046#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11047#L18-1 assume !!(main_~i~0#1 > 0); 11190#L12 [2023-11-06 22:33:56,946 INFO L750 eck$LassoCheckResult]: Loop: 11190#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 11187#L12-2 assume !(10 == main_~i~0#1); 10867#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 10868#L18-1 assume !!(main_~i~0#1 > 0); 10855#L12 assume !(1 == main_~i~0#1); 10865#L12-2 assume !(10 == main_~i~0#1); 11481#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11479#L18-1 assume !!(main_~i~0#1 > 0); 11477#L12 assume !(1 == main_~i~0#1); 11475#L12-2 assume !(10 == main_~i~0#1); 11473#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11471#L18-1 assume !!(main_~i~0#1 > 0); 11469#L12 assume !(1 == main_~i~0#1); 11467#L12-2 assume !(10 == main_~i~0#1); 11465#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11463#L18-1 assume !!(main_~i~0#1 > 0); 11461#L12 assume !(1 == main_~i~0#1); 11459#L12-2 assume !(10 == main_~i~0#1); 11457#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11455#L18-1 assume !!(main_~i~0#1 > 0); 11453#L12 assume !(1 == main_~i~0#1); 11451#L12-2 assume !(10 == main_~i~0#1); 11449#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11447#L18-1 assume !!(main_~i~0#1 > 0); 11445#L12 assume !(1 == main_~i~0#1); 11443#L12-2 assume !(10 == main_~i~0#1); 11441#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11439#L18-1 assume !!(main_~i~0#1 > 0); 11437#L12 assume !(1 == main_~i~0#1); 11435#L12-2 assume !(10 == main_~i~0#1); 11433#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11431#L18-1 assume !!(main_~i~0#1 > 0); 11430#L12 assume !(1 == main_~i~0#1); 11429#L12-2 assume !(10 == main_~i~0#1); 11425#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11426#L18-1 assume !!(main_~i~0#1 > 0); 11418#L12 assume !(1 == main_~i~0#1); 11419#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11292#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11416#L18-1 assume !!(main_~i~0#1 > 0); 11415#L12 assume !(1 == main_~i~0#1); 11414#L12-2 assume !(10 == main_~i~0#1); 11413#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11412#L18-1 assume !!(main_~i~0#1 > 0); 11411#L12 assume !(1 == main_~i~0#1); 11410#L12-2 assume !(10 == main_~i~0#1); 11409#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11408#L18-1 assume !!(main_~i~0#1 > 0); 11407#L12 assume !(1 == main_~i~0#1); 11368#L12-2 assume !(10 == main_~i~0#1); 11367#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11364#L18-1 assume !!(main_~i~0#1 > 0); 11365#L12 assume !(1 == main_~i~0#1); 11372#L12-2 assume !(10 == main_~i~0#1); 11370#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11371#L18-1 assume !!(main_~i~0#1 > 0); 11356#L12 assume !(1 == main_~i~0#1); 11352#L12-2 assume !(10 == main_~i~0#1); 11293#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11424#L18-1 assume !!(main_~i~0#1 > 0); 11190#L12 [2023-11-06 22:33:56,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:56,947 INFO L85 PathProgramCache]: Analyzing trace with hash 912728085, now seen corresponding path program 5 times [2023-11-06 22:33:56,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:56,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970085703] [2023-11-06 22:33:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:56,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:56,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:56,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:56,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:56,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1190197230, now seen corresponding path program 3 times [2023-11-06 22:33:56,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:56,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767830314] [2023-11-06 22:33:56,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:56,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:56,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:56,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:57,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:57,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1444454914, now seen corresponding path program 6 times [2023-11-06 22:33:57,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:57,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922599409] [2023-11-06 22:33:57,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:57,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-06 22:33:57,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:57,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922599409] [2023-11-06 22:33:57,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922599409] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:33:57,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061676178] [2023-11-06 22:33:57,271 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-06 22:33:57,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:33:57,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:57,279 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:33:57,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-06 22:33:57,366 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2023-11-06 22:33:57,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:33:57,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:33:57,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:57,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-06 22:33:57,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:33:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-06 22:33:57,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061676178] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:33:57,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:33:57,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2023-11-06 22:33:57,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819789777] [2023-11-06 22:33:57,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:33:57,957 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:57,957 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:57,957 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:57,957 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:57,957 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:33:57,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:57,958 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:57,958 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:57,958 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2023-11-06 22:33:57,958 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:57,958 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:57,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:57,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:57,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:57,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:58,027 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:58,027 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:33:58,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:58,029 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:58,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:58,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:58,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-06 22:33:58,071 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:58,071 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_16=1} Honda state: {v_rep~unnamed0~0~true_16=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:58,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2023-11-06 22:33:58,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:58,077 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:58,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:58,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:58,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-06 22:33:58,115 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:33:58,116 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:33:58,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:58,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:58,121 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:58,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:33:58,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:58,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-11-06 22:33:58,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:58,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:58,165 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:58,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:33:58,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:33:58,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-11-06 22:33:58,211 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:33:58,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:58,215 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:33:58,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:33:58,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:33:58,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:33:58,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:33:58,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:33:58,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:33:58,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2023-11-06 22:33:58,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:33:58,216 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:33:58,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:58,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:58,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:58,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:33:58,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:33:58,281 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:33:58,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:58,283 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:58,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:58,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-11-06 22:33:58,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:58,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:58,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:58,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:58,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:33:58,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:33:58,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:58,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:58,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:58,333 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:58,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:58,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-11-06 22:33:58,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:58,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:58,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:58,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:58,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:58,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:33:58,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:58,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:33:58,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:58,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:58,377 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:58,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:33:58,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-11-06 22:33:58,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:33:58,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:33:58,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:33:58,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:33:58,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:33:58,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:33:58,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:33:58,421 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:33:58,424 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:33:58,424 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:33:58,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:33:58,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:58,431 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:58,433 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:33:58,433 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:33:58,433 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:33:58,433 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2023-11-06 22:33:58,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-06 22:33:58,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:58,438 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:33:58,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:58,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:58,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:58,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-11-06 22:33:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:58,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:33:58,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:33:58,957 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-06 22:33:58,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:59,019 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 1120 states and 1472 transitions. Complement of second has 7 states. [2023-11-06 22:33:59,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:59,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:59,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-06 22:33:59,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-06 22:33:59,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:59,021 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:33:59,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:59,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:59,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:59,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:33:59,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:33:59,456 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-06 22:33:59,456 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:59,548 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 1179 states and 1565 transitions. Complement of second has 11 states. [2023-11-06 22:33:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-06 22:33:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:59,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2023-11-06 22:33:59,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-06 22:33:59,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:33:59,551 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:33:59,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:59,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:33:59,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:59,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:33:59,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:33:59,983 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:33:59,984 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 9 loop predicates [2023-11-06 22:33:59,984 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:00,039 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 1301 states and 1787 transitions. Complement of second has 9 states. [2023-11-06 22:34:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:34:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-06 22:34:00,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-06 22:34:00,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:34:00,043 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:34:00,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:00,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:34:00,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:34:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:00,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:34:00,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:34:00,505 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:34:00,505 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-06 22:34:00,506 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:00,616 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 1866 states and 2535 transitions. Complement of second has 19 states. [2023-11-06 22:34:00,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-06 22:34:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:00,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2023-11-06 22:34:00,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-06 22:34:00,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:34:00,620 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:34:00,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:00,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:34:00,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:34:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:00,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:34:00,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:34:01,077 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-06 22:34:01,078 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2023-11-06 22:34:01,078 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:01,979 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 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 11129 states and 19734 transitions. Complement of second has 282 states 36 powerset states246 rank states. The highest rank that occured is 5 [2023-11-06 22:34:01,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 10 non-accepting loop states 1 accepting loop states [2023-11-06 22:34:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 110 transitions. [2023-11-06 22:34:01,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-06 22:34:01,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:34:01,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 123 letters. Loop has 60 letters. [2023-11-06 22:34:01,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:34:01,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 63 letters. Loop has 120 letters. [2023-11-06 22:34:02,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:34:02,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11129 states and 19734 transitions. [2023-11-06 22:34:02,154 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 248 [2023-11-06 22:34:02,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11129 states to 4882 states and 8741 transitions. [2023-11-06 22:34:02,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 330 [2023-11-06 22:34:02,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 575 [2023-11-06 22:34:02,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4882 states and 8741 transitions. [2023-11-06 22:34:02,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:34:02,266 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4882 states and 8741 transitions. [2023-11-06 22:34:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states and 8741 transitions. [2023-11-06 22:34:02,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 3014. [2023-11-06 22:34:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 3014 states have (on average 1.813868613138686) internal successors, (5467), 3013 states have internal predecessors, (5467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 5467 transitions. [2023-11-06 22:34:02,381 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3014 states and 5467 transitions. [2023-11-06 22:34:02,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:34:02,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:34:02,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:34:02,385 INFO L87 Difference]: Start difference. First operand 3014 states and 5467 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:02,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:34:02,483 INFO L93 Difference]: Finished difference Result 3401 states and 6312 transitions. [2023-11-06 22:34:02,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3401 states and 6312 transitions. [2023-11-06 22:34:02,536 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2023-11-06 22:34:02,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3401 states to 3369 states and 6221 transitions. [2023-11-06 22:34:02,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 238 [2023-11-06 22:34:02,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 238 [2023-11-06 22:34:02,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3369 states and 6221 transitions. [2023-11-06 22:34:02,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:34:02,589 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3369 states and 6221 transitions. [2023-11-06 22:34:02,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states and 6221 transitions. [2023-11-06 22:34:02,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3222. [2023-11-06 22:34:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3222 states have (on average 1.8395406579764122) internal successors, (5927), 3221 states have internal predecessors, (5927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5927 transitions. [2023-11-06 22:34:02,694 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3222 states and 5927 transitions. [2023-11-06 22:34:02,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:34:02,695 INFO L428 stractBuchiCegarLoop]: Abstraction has 3222 states and 5927 transitions. [2023-11-06 22:34:02,695 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2023-11-06 22:34:02,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3222 states and 5927 transitions. [2023-11-06 22:34:02,717 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 152 [2023-11-06 22:34:02,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:34:02,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:34:02,725 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [19, 17, 17, 9, 9, 1, 1, 1, 1] [2023-11-06 22:34:02,725 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [18, 17, 17, 9, 9, 1, 1] [2023-11-06 22:34:02,727 INFO L748 eck$LassoCheckResult]: Stem: 37489#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 37490#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 37494#L18-1 assume !!(main_~i~0#1 > 0); 37746#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 39008#L12-2 assume !(10 == main_~i~0#1); 39006#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 39004#L18-1 assume !!(main_~i~0#1 > 0); 39002#L12 assume !(1 == main_~i~0#1); 39000#L12-2 assume !(10 == main_~i~0#1); 38998#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38996#L18-1 assume !!(main_~i~0#1 > 0); 38994#L12 assume !(1 == main_~i~0#1); 38992#L12-2 assume !(10 == main_~i~0#1); 38990#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38988#L18-1 assume !!(main_~i~0#1 > 0); 38986#L12 assume !(1 == main_~i~0#1); 38984#L12-2 assume !(10 == main_~i~0#1); 38982#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38980#L18-1 assume !!(main_~i~0#1 > 0); 38978#L12 assume !(1 == main_~i~0#1); 38976#L12-2 assume !(10 == main_~i~0#1); 38974#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38972#L18-1 assume !!(main_~i~0#1 > 0); 38970#L12 assume !(1 == main_~i~0#1); 38968#L12-2 assume !(10 == main_~i~0#1); 38966#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38964#L18-1 assume !!(main_~i~0#1 > 0); 38962#L12 assume !(1 == main_~i~0#1); 38960#L12-2 assume !(10 == main_~i~0#1); 38958#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38956#L18-1 assume !!(main_~i~0#1 > 0); 38954#L12 assume !(1 == main_~i~0#1); 38952#L12-2 assume !(10 == main_~i~0#1); 38950#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38948#L18-1 assume !!(main_~i~0#1 > 0); 38941#L12 assume !(1 == main_~i~0#1); 38944#L12-2 assume !(10 == main_~i~0#1); 38945#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38939#L18-1 assume !!(main_~i~0#1 > 0); 38940#L12 assume !(1 == main_~i~0#1); 38717#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 38331#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38693#L18-1 assume !!(main_~i~0#1 > 0); 38687#L12 assume !(1 == main_~i~0#1); 38685#L12-2 assume !(10 == main_~i~0#1); 38682#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38678#L18-1 assume !!(main_~i~0#1 > 0); 38674#L12 assume !(1 == main_~i~0#1); 38670#L12-2 assume !(10 == main_~i~0#1); 38667#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38662#L18-1 assume !!(main_~i~0#1 > 0); 38663#L12 assume !(1 == main_~i~0#1); 38655#L12-2 assume !(10 == main_~i~0#1); 38650#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38645#L18-1 assume !!(main_~i~0#1 > 0); 38646#L12 assume !(1 == main_~i~0#1); 38631#L12-2 assume !(10 == main_~i~0#1); 38632#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38695#L18-1 assume !!(main_~i~0#1 > 0); 38694#L12 assume !(1 == main_~i~0#1); 38616#L12-2 assume !(10 == main_~i~0#1); 38615#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38707#L18-1 assume !!(main_~i~0#1 > 0); 38604#L12 assume !(1 == main_~i~0#1); 38599#L12-2 assume !(10 == main_~i~0#1); 38600#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38714#L18-1 assume !!(main_~i~0#1 > 0); 38709#L12 assume !(1 == main_~i~0#1); 38586#L12-2 assume !(10 == main_~i~0#1); 38587#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38901#L18-1 assume !!(main_~i~0#1 > 0); 38321#L12 assume !(1 == main_~i~0#1); 39857#L12-2 assume !(10 == main_~i~0#1); 39855#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40135#L18-1 assume !!(main_~i~0#1 > 0); 37502#L12 [2023-11-06 22:34:02,727 INFO L750 eck$LassoCheckResult]: Loop: 37502#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 37480#L12-2 assume !(10 == main_~i~0#1); 37481#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40643#L18-1 assume !!(main_~i~0#1 > 0); 37495#L12 assume !(1 == main_~i~0#1); 37496#L12-2 assume !(10 == main_~i~0#1); 40675#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40674#L18-1 assume !!(main_~i~0#1 > 0); 40673#L12 assume !(1 == main_~i~0#1); 40672#L12-2 assume !(10 == main_~i~0#1); 40671#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40670#L18-1 assume !!(main_~i~0#1 > 0); 40669#L12 assume !(1 == main_~i~0#1); 40668#L12-2 assume !(10 == main_~i~0#1); 40667#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40666#L18-1 assume !!(main_~i~0#1 > 0); 40665#L12 assume !(1 == main_~i~0#1); 40664#L12-2 assume !(10 == main_~i~0#1); 40663#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40662#L18-1 assume !!(main_~i~0#1 > 0); 40661#L12 assume !(1 == main_~i~0#1); 40660#L12-2 assume !(10 == main_~i~0#1); 40659#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40658#L18-1 assume !!(main_~i~0#1 > 0); 40657#L12 assume !(1 == main_~i~0#1); 40656#L12-2 assume !(10 == main_~i~0#1); 40655#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40654#L18-1 assume !!(main_~i~0#1 > 0); 40653#L12 assume !(1 == main_~i~0#1); 40652#L12-2 assume !(10 == main_~i~0#1); 40651#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40650#L18-1 assume !!(main_~i~0#1 > 0); 40649#L12 assume !(1 == main_~i~0#1); 40648#L12-2 assume !(10 == main_~i~0#1); 40641#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40642#L18-1 assume !!(main_~i~0#1 > 0); 40461#L12 assume !(1 == main_~i~0#1); 40462#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 39577#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40435#L18-1 assume !!(main_~i~0#1 > 0); 40432#L12 assume !(1 == main_~i~0#1); 40429#L12-2 assume !(10 == main_~i~0#1); 40426#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40425#L18-1 assume !!(main_~i~0#1 > 0); 40424#L12 assume !(1 == main_~i~0#1); 40422#L12-2 assume !(10 == main_~i~0#1); 40419#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40415#L18-1 assume !!(main_~i~0#1 > 0); 40416#L12 assume !(1 == main_~i~0#1); 40405#L12-2 assume !(10 == main_~i~0#1); 40406#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40397#L18-1 assume !!(main_~i~0#1 > 0); 40398#L12 assume !(1 == main_~i~0#1); 40384#L12-2 assume !(10 == main_~i~0#1); 40380#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40373#L18-1 assume !!(main_~i~0#1 > 0); 40374#L12 assume !(1 == main_~i~0#1); 40362#L12-2 assume !(10 == main_~i~0#1); 40358#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40359#L18-1 assume !!(main_~i~0#1 > 0); 40353#L12 assume !(1 == main_~i~0#1); 40348#L12-2 assume !(10 == main_~i~0#1); 40349#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40455#L18-1 assume !!(main_~i~0#1 > 0); 40454#L12 assume !(1 == main_~i~0#1); 40336#L12-2 assume !(10 == main_~i~0#1); 39625#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 39626#L18-1 assume !!(main_~i~0#1 > 0); 40497#L12 assume !(1 == main_~i~0#1); 39582#L12-2 assume !(10 == main_~i~0#1); 39314#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 39315#L18-1 assume !!(main_~i~0#1 > 0); 37502#L12 [2023-11-06 22:34:02,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:02,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1568126196, now seen corresponding path program 7 times [2023-11-06 22:34:02,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:02,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17646400] [2023-11-06 22:34:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:02,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:02,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:34:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:02,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:34:02,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:02,760 INFO L85 PathProgramCache]: Analyzing trace with hash 537366349, now seen corresponding path program 4 times [2023-11-06 22:34:02,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:02,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322377526] [2023-11-06 22:34:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:02,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:02,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:34:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:02,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:34:02,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash 758614336, now seen corresponding path program 8 times [2023-11-06 22:34:02,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:02,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450791589] [2023-11-06 22:34:02,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:02,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:02,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:34:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:02,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:34:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:03,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:34:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:04,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:34:04 BoogieIcfgContainer [2023-11-06 22:34:04,072 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:34:04,073 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:34:04,073 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:34:04,073 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:34:04,074 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:44" (3/4) ... [2023-11-06 22:34:04,076 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 22:34:04,158 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:34:04,159 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:34:04,160 INFO L158 Benchmark]: Toolchain (without parser) took 20312.46ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 107.2MB in the beginning and 155.4MB in the end (delta: -48.2MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2023-11-06 22:34:04,160 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 155.2MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:34:04,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.74ms. Allocated memory is still 155.2MB. Free memory was 106.7MB in the beginning and 97.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:34:04,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.71ms. Allocated memory is still 155.2MB. Free memory was 97.6MB in the beginning and 96.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:34:04,162 INFO L158 Benchmark]: Boogie Preprocessor took 23.95ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 95.6MB in the end (delta: 554.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:34:04,162 INFO L158 Benchmark]: RCFGBuilder took 358.95ms. Allocated memory is still 155.2MB. Free memory was 95.1MB in the beginning and 86.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:34:04,163 INFO L158 Benchmark]: BuchiAutomizer took 19583.30ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 86.7MB in the beginning and 160.6MB in the end (delta: -73.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-06 22:34:04,163 INFO L158 Benchmark]: Witness Printer took 86.21ms. Allocated memory is still 255.9MB. Free memory was 160.6MB in the beginning and 155.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:34:04,165 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 155.2MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.74ms. Allocated memory is still 155.2MB. Free memory was 106.7MB in the beginning and 97.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.71ms. Allocated memory is still 155.2MB. Free memory was 97.6MB in the beginning and 96.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.95ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 95.6MB in the end (delta: 554.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.95ms. Allocated memory is still 155.2MB. Free memory was 95.1MB in the beginning and 86.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 19583.30ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 86.7MB in the beginning and 160.6MB in the end (delta: -73.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 86.21ms. Allocated memory is still 255.9MB. Free memory was 160.6MB in the beginning and 155.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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 17 terminating modules (9 trivial, 5 deterministic, 3 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 i and consists of 4 locations. One deterministic module has affine ranking function ((-2 * i) + 21) and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i 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 ((-2 * i) + 9) and consists of 9 locations. One nondeterministic module has affine ranking function ((-2 * i) + 5) and consists of 13 locations. 9 modules have a trivial ranking function, the largest among these consists of 11 locations. The remainder module has 3222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 19.3s and 13 iterations. TraceHistogramMax:19. Analysis of lassos took 10.5s. Construction of modules took 0.8s. Büchi inclusion checks took 7.2s. Highest rank in rank-based complementation 5. Minimization of det autom 2. Minimization of nondet autom 15. Automata minimization 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 2653 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 1, 0, 2]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 570/640 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 426 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 230 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 742 IncrementalHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 203 mSDtfsCounter, 742 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT2 SILN0 SILU0 SILI2 SILT3 lasso1 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax177 hnf100 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf93 smp89 dnf132 smp95 tf108 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 152ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] [L12] COND TRUE i == 1 [L13] up = 1 VAL [i=1, up=1] [L15] COND FALSE !(i == 10) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE i > 0 VAL [i=2, up=1] [L12] COND FALSE !(i == 1) VAL [i=2, up=1] [L15] COND FALSE !(i == 10) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE i > 0 VAL [i=3, up=1] [L12] COND FALSE !(i == 1) VAL [i=3, up=1] [L15] COND FALSE !(i == 10) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE i > 0 VAL [i=4, up=1] [L12] COND FALSE !(i == 1) VAL [i=4, up=1] [L15] COND FALSE !(i == 10) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE i > 0 VAL [i=5, up=1] [L12] COND FALSE !(i == 1) VAL [i=5, up=1] [L15] COND FALSE !(i == 10) VAL [i=5, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=6, up=1] [L11] COND TRUE i > 0 VAL [i=6, up=1] [L12] COND FALSE !(i == 1) VAL [i=6, up=1] [L15] COND FALSE !(i == 10) VAL [i=6, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=7, up=1] [L11] COND TRUE i > 0 VAL [i=7, up=1] [L12] COND FALSE !(i == 1) VAL [i=7, up=1] [L15] COND FALSE !(i == 10) VAL [i=7, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=8, up=1] [L11] COND TRUE i > 0 VAL [i=8, up=1] [L12] COND FALSE !(i == 1) VAL [i=8, up=1] [L15] COND FALSE !(i == 10) VAL [i=8, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=9, up=1] [L11] COND TRUE i > 0 VAL [i=9, up=1] [L12] COND FALSE !(i == 1) VAL [i=9, up=1] [L15] COND FALSE !(i == 10) VAL [i=9, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=10, up=1] [L11] COND TRUE i > 0 VAL [i=10, up=1] [L12] COND FALSE !(i == 1) VAL [i=10, up=1] [L15] COND TRUE i == 10 [L16] up = 0 VAL [i=10, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=9, up=0] [L11] COND TRUE i > 0 VAL [i=9, up=0] [L12] COND FALSE !(i == 1) VAL [i=9, up=0] [L15] COND FALSE !(i == 10) VAL [i=9, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=8, up=0] [L11] COND TRUE i > 0 VAL [i=8, up=0] [L12] COND FALSE !(i == 1) VAL [i=8, up=0] [L15] COND FALSE !(i == 10) VAL [i=8, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=7, up=0] [L11] COND TRUE i > 0 VAL [i=7, up=0] [L12] COND FALSE !(i == 1) VAL [i=7, up=0] [L15] COND FALSE !(i == 10) VAL [i=7, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=6, up=0] [L11] COND TRUE i > 0 VAL [i=6, up=0] [L12] COND FALSE !(i == 1) VAL [i=6, up=0] [L15] COND FALSE !(i == 10) VAL [i=6, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=5, up=0] [L11] COND TRUE i > 0 VAL [i=5, up=0] [L12] COND FALSE !(i == 1) VAL [i=5, up=0] [L15] COND FALSE !(i == 10) VAL [i=5, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=4, up=0] [L11] COND TRUE i > 0 VAL [i=4, up=0] [L12] COND FALSE !(i == 1) VAL [i=4, up=0] [L15] COND FALSE !(i == 10) VAL [i=4, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=3, up=0] [L11] COND TRUE i > 0 VAL [i=3, up=0] [L12] COND FALSE !(i == 1) VAL [i=3, up=0] [L15] COND FALSE !(i == 10) VAL [i=3, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=2, up=0] [L11] COND TRUE i > 0 VAL [i=2, up=0] [L12] COND FALSE !(i == 1) VAL [i=2, up=0] [L15] COND FALSE !(i == 10) VAL [i=2, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=1, up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] Loop: [L12] COND TRUE i == 1 [L13] up = 1 [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND TRUE i == 10 [L16] up = 0 [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] [L12] COND TRUE i == 1 [L13] up = 1 VAL [i=1, up=1] [L15] COND FALSE !(i == 10) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE i > 0 VAL [i=2, up=1] [L12] COND FALSE !(i == 1) VAL [i=2, up=1] [L15] COND FALSE !(i == 10) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE i > 0 VAL [i=3, up=1] [L12] COND FALSE !(i == 1) VAL [i=3, up=1] [L15] COND FALSE !(i == 10) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE i > 0 VAL [i=4, up=1] [L12] COND FALSE !(i == 1) VAL [i=4, up=1] [L15] COND FALSE !(i == 10) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE i > 0 VAL [i=5, up=1] [L12] COND FALSE !(i == 1) VAL [i=5, up=1] [L15] COND FALSE !(i == 10) VAL [i=5, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=6, up=1] [L11] COND TRUE i > 0 VAL [i=6, up=1] [L12] COND FALSE !(i == 1) VAL [i=6, up=1] [L15] COND FALSE !(i == 10) VAL [i=6, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=7, up=1] [L11] COND TRUE i > 0 VAL [i=7, up=1] [L12] COND FALSE !(i == 1) VAL [i=7, up=1] [L15] COND FALSE !(i == 10) VAL [i=7, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=8, up=1] [L11] COND TRUE i > 0 VAL [i=8, up=1] [L12] COND FALSE !(i == 1) VAL [i=8, up=1] [L15] COND FALSE !(i == 10) VAL [i=8, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=9, up=1] [L11] COND TRUE i > 0 VAL [i=9, up=1] [L12] COND FALSE !(i == 1) VAL [i=9, up=1] [L15] COND FALSE !(i == 10) VAL [i=9, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=10, up=1] [L11] COND TRUE i > 0 VAL [i=10, up=1] [L12] COND FALSE !(i == 1) VAL [i=10, up=1] [L15] COND TRUE i == 10 [L16] up = 0 VAL [i=10, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=9, up=0] [L11] COND TRUE i > 0 VAL [i=9, up=0] [L12] COND FALSE !(i == 1) VAL [i=9, up=0] [L15] COND FALSE !(i == 10) VAL [i=9, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=8, up=0] [L11] COND TRUE i > 0 VAL [i=8, up=0] [L12] COND FALSE !(i == 1) VAL [i=8, up=0] [L15] COND FALSE !(i == 10) VAL [i=8, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=7, up=0] [L11] COND TRUE i > 0 VAL [i=7, up=0] [L12] COND FALSE !(i == 1) VAL [i=7, up=0] [L15] COND FALSE !(i == 10) VAL [i=7, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=6, up=0] [L11] COND TRUE i > 0 VAL [i=6, up=0] [L12] COND FALSE !(i == 1) VAL [i=6, up=0] [L15] COND FALSE !(i == 10) VAL [i=6, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=5, up=0] [L11] COND TRUE i > 0 VAL [i=5, up=0] [L12] COND FALSE !(i == 1) VAL [i=5, up=0] [L15] COND FALSE !(i == 10) VAL [i=5, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=4, up=0] [L11] COND TRUE i > 0 VAL [i=4, up=0] [L12] COND FALSE !(i == 1) VAL [i=4, up=0] [L15] COND FALSE !(i == 10) VAL [i=4, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=3, up=0] [L11] COND TRUE i > 0 VAL [i=3, up=0] [L12] COND FALSE !(i == 1) VAL [i=3, up=0] [L15] COND FALSE !(i == 10) VAL [i=3, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=2, up=0] [L11] COND TRUE i > 0 VAL [i=2, up=0] [L12] COND FALSE !(i == 1) VAL [i=2, up=0] [L15] COND FALSE !(i == 10) VAL [i=2, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=1, up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] Loop: [L12] COND TRUE i == 1 [L13] up = 1 [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND TRUE i == 10 [L16] up = 0 [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:34:04,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2023-11-06 22:34:04,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-06 22:34:04,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-06 22:34:04,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2023-11-06 22:34:05,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-06 22:34:05,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4d496e2-2657-4bd1-80b7-3e30f5e2f3b9/bin/uautomizer-verify-WvqO1wxjHP/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)