./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:46:04,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:46:04,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 04:46:04,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:46:04,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:46:04,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:46:04,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:46:04,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:46:04,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:46:04,993 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:46:04,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:46:04,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:46:04,995 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:46:04,995 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 04:46:04,996 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 04:46:04,996 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 04:46:04,997 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 04:46:04,997 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 04:46:04,998 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 04:46:04,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:46:04,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 04:46:05,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:46:05,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:46:05,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 04:46:05,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 04:46:05,002 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 04:46:05,002 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:46:05,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:46:05,003 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 04:46:05,004 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:46:05,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:46:05,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:46:05,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:46:05,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:46:05,006 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 04:46:05,006 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_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 [2023-11-29 04:46:05,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:46:05,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:46:05,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:46:05,266 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:46:05,267 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:46:05,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/NO_13.c [2023-11-29 04:46:10,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:46:10,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:46:10,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/sv-benchmarks/c/termination-restricted-15/NO_13.c [2023-11-29 04:46:10,310 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/data/3de439dec/cc1069ac61cd48fb80a7c0b3e705e4e3/FLAG23a11225f [2023-11-29 04:46:10,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/data/3de439dec/cc1069ac61cd48fb80a7c0b3e705e4e3 [2023-11-29 04:46:10,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:46:10,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:46:10,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:46:10,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:46:10,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:46:10,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367862ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10, skipping insertion in model container [2023-11-29 04:46:10,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,353 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:46:10,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:46:10,491 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:46:10,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:46:10,518 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:46:10,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10 WrapperNode [2023-11-29 04:46:10,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:46:10,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:46:10,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:46:10,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:46:10,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,543 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-11-29 04:46:10,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:46:10,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:46:10,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:46:10,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:46:10,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,559 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 04:46:10,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:46:10,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:46:10,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:46:10,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:46:10,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (1/1) ... [2023-11-29 04:46:10,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:10,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:10,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:10,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 04:46:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:46:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:46:10,691 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:46:10,693 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:46:10,738 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:46:10,746 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:46:10,746 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:46:10,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:46:10 BoogieIcfgContainer [2023-11-29 04:46:10,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:46:10,748 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 04:46:10,748 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 04:46:10,751 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 04:46:10,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:46:10,752 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 04:46:10" (1/3) ... [2023-11-29 04:46:10,753 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79bc0c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 04:46:10, skipping insertion in model container [2023-11-29 04:46:10,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:46:10,753 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:10" (2/3) ... [2023-11-29 04:46:10,754 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79bc0c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 04:46:10, skipping insertion in model container [2023-11-29 04:46:10,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 04:46:10,754 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:46:10" (3/3) ... [2023-11-29 04:46:10,755 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_13.c [2023-11-29 04:46:10,806 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 04:46:10,806 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 04:46:10,806 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 04:46:10,806 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 04:46:10,806 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 04:46:10,806 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 04:46:10,807 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 04:46:10,807 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 04:46:10,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:10,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:46:10,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:10,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:10,830 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 04:46:10,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:46:10,830 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 04:46:10,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:10,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:46:10,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:10,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:10,832 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 04:46:10,832 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:46:10,839 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2#L12-2true [2023-11-29 04:46:10,839 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~i~0#1 < main_~j~0#1); 8#L12true assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2#L12-2true [2023-11-29 04:46:10,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:10,845 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 04:46:10,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:10,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957277464] [2023-11-29 04:46:10,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:10,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:10,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:10,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:10,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:10,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-29 04:46:10,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:10,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810406921] [2023-11-29 04:46:10,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:10,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:10,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:10,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:10,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:10,967 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-29 04:46:10,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:10,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716497635] [2023-11-29 04:46:10,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:10,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:11,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:11,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:11,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716497635] [2023-11-29 04:46:11,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716497635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:46:11,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:46:11,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:46:11,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755399765] [2023-11-29 04:46:11,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:46:11,110 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:11,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:11,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:11,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:11,111 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:46:11,111 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,112 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:11,112 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:11,112 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2023-11-29 04:46:11,112 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:11,112 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:11,132 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:11,144 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:11,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:11,225 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:11,226 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:46:11,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 04:46:11,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:11,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:11,266 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:46:11,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:46:11,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:11,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,273 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 04:46:11,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:11,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:11,297 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:46:11,297 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:46:11,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 04:46:11,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 04:46:11,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:11,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:11,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 04:46:11,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,337 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 04:46:11,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:46:11,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:11,371 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:46:11,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:11,376 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:11,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:11,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:11,376 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:11,376 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:46:11,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:11,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:11,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2023-11-29 04:46:11,378 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:11,378 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:11,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:11,396 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:11,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:11,463 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:11,467 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:46:11,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,470 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 04:46:11,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:11,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:11,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:11,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:11,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:11,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:46:11,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:46:11,496 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:46:11,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 04:46:11,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 04:46:11,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:11,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:11,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:11,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:11,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:11,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:46:11,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:46:11,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:46:11,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 04:46:11,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,532 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 04:46:11,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:11,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:11,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:46:11,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:11,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:11,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:11,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:46:11,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:46:11,553 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:46:11,557 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:46:11,557 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:46:11,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:11,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 04:46:11,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:46:11,594 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:46:11,594 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:46:11,594 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2023-11-29 04:46:11,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 04:46:11,601 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:46:11,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:11,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:11,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:11,649 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:11,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:11,689 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:46:11,692 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:11,732 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 28 transitions. Complement of second has 6 states. [2023-11-29 04:46:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:11,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-29 04:46:11,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-29 04:46:11,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:11,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 04:46:11,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:11,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-29 04:46:11,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:11,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2023-11-29 04:46:11,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:46:11,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2023-11-29 04:46:11,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 04:46:11,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 04:46:11,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-29 04:46:11,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:11,752 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 04:46:11,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-29 04:46:11,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-29 04:46:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:11,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-29 04:46:11,780 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-29 04:46:11,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:11,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:46:11,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:46:11,784 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. 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) [2023-11-29 04:46:11,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:11,795 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2023-11-29 04:46:11,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2023-11-29 04:46:11,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:46:11,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2023-11-29 04:46:11,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 04:46:11,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 04:46:11,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2023-11-29 04:46:11,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:46:11,797 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 04:46:11,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2023-11-29 04:46:11,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-29 04:46:11,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 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) [2023-11-29 04:46:11,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2023-11-29 04:46:11,799 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 04:46:11,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:46:11,800 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-29 04:46:11,800 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 04:46:11,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2023-11-29 04:46:11,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:46:11,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:11,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:11,801 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 04:46:11,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:46:11,802 INFO L748 eck$LassoCheckResult]: Stem: 81#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 82#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 83#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 84#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 79#L12-2 [2023-11-29 04:46:11,802 INFO L750 eck$LassoCheckResult]: Loop: 79#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 80#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 79#L12-2 [2023-11-29 04:46:11,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:11,803 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-29 04:46:11,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:11,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240505514] [2023-11-29 04:46:11,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:11,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:11,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:11,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:11,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:11,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-29 04:46:11,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:11,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808125017] [2023-11-29 04:46:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:11,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:11,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:11,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:11,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:11,830 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-29 04:46:11,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:11,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753091905] [2023-11-29 04:46:11,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:11,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:11,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:11,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:11,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753091905] [2023-11-29 04:46:11,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753091905] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:46:11,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281756791] [2023-11-29 04:46:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:11,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:11,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:11,883 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:11,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:46:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:11,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:46:11,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:11,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:11,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:46:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:11,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281756791] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:46:11,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:46:11,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-29 04:46:11,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263719269] [2023-11-29 04:46:11,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:46:12,002 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:12,002 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:12,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:12,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:12,003 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:46:12,003 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,003 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:12,003 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:12,003 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2023-11-29 04:46:12,003 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:12,003 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:12,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,067 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:12,067 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:46:12,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,069 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 04:46:12,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:12,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:12,095 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:46:12,096 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:46:12,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 04:46:12,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,100 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 04:46:12,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:12,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:12,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:46:12,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:46:12,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 04:46:12,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,134 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 04:46:12,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:12,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:12,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 04:46:12,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,160 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 04:46:12,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:46:12,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:12,188 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:46:12,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 04:46:12,192 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:12,192 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:12,192 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:12,192 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:12,192 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:46:12,193 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,193 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:12,193 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:12,193 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2023-11-29 04:46:12,193 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:12,193 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:12,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,254 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:12,254 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:46:12,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,256 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 04:46:12,259 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 [2023-11-29 04:46:12,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:12,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:12,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:12,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:12,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:46:12,274 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:46:12,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:46:12,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 04:46:12,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,284 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 04:46:12,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:12,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:12,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:12,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:12,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:12,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:46:12,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:46:12,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:46:12,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 04:46:12,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,315 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 04:46:12,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:12,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:12,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:46:12,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:12,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:12,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:12,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:46:12,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:46:12,338 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:46:12,342 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:46:12,342 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:46:12,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,350 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 04:46:12,352 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:46:12,352 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:46:12,353 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:46:12,353 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2023-11-29 04:46:12,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 04:46:12,357 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:46:12,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:12,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:12,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:12,389 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:12,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:12,393 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:46:12,394 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:12,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 5 states. [2023-11-29 04:46:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 04:46:12,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 04:46:12,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:12,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-29 04:46:12,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:12,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-29 04:46:12,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:12,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2023-11-29 04:46:12,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:46:12,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2023-11-29 04:46:12,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-29 04:46:12,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-29 04:46:12,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2023-11-29 04:46:12,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:12,409 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-29 04:46:12,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2023-11-29 04:46:12,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-29 04:46:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:12,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-29 04:46:12,411 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-29 04:46:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:12,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:46:12,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:46:12,412 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:12,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:12,433 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-11-29 04:46:12,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2023-11-29 04:46:12,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:46:12,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2023-11-29 04:46:12,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-29 04:46:12,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-29 04:46:12,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2023-11-29 04:46:12,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:46:12,436 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-29 04:46:12,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2023-11-29 04:46:12,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-29 04:46:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-11-29 04:46:12,438 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-29 04:46:12,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:46:12,439 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-29 04:46:12,439 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 04:46:12,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2023-11-29 04:46:12,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-29 04:46:12,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:12,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:12,440 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1] [2023-11-29 04:46:12,441 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:46:12,441 INFO L748 eck$LassoCheckResult]: Stem: 191#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 192#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 193#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 194#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 189#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 190#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 200#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 199#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 198#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 197#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 196#L12-2 [2023-11-29 04:46:12,441 INFO L750 eck$LassoCheckResult]: Loop: 196#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 195#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 196#L12-2 [2023-11-29 04:46:12,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:12,441 INFO L85 PathProgramCache]: Analyzing trace with hash 742492623, now seen corresponding path program 2 times [2023-11-29 04:46:12,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:12,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974679224] [2023-11-29 04:46:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:12,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:12,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:12,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:12,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-29 04:46:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:12,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080692210] [2023-11-29 04:46:12,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:12,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:12,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:12,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:12,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:12,476 INFO L85 PathProgramCache]: Analyzing trace with hash 570839924, now seen corresponding path program 2 times [2023-11-29 04:46:12,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:12,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759530199] [2023-11-29 04:46:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:12,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:12,568 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:12,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:12,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759530199] [2023-11-29 04:46:12,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759530199] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:46:12,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309093718] [2023-11-29 04:46:12,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:46:12,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:12,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,570 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 04:46:12,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:46:12,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:46:12,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:46:12,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:12,638 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:12,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:46:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:12,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309093718] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:46:12,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:46:12,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-29 04:46:12,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769068157] [2023-11-29 04:46:12,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:46:12,734 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:12,735 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:12,735 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:12,735 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:12,735 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:46:12,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:12,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:12,735 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2023-11-29 04:46:12,735 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:12,735 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:12,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,793 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:12,794 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:46:12,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,795 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 04:46:12,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:12,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:12,820 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 04:46:12,820 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 04:46:12,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 04:46:12,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,824 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 04:46:12,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:12,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:12,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 04:46:12,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,843 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 04:46:12,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:46:12,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:12,871 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:46:12,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-29 04:46:12,875 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:12,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:12,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:12,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:12,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:46:12,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:12,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:12,876 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2023-11-29 04:46:12,876 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:12,876 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:12,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:12,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 04:46:12,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-29 04:46:12,946 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:12,946 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:46:12,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,948 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 04:46:12,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:12,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:12,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:12,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:12,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:12,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-29 04:46:12,967 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-29 04:46:12,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 04:46:12,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:12,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:12,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:12,977 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:12,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-29 04:46:12,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:12,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:12,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:46:12,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:12,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:12,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:12,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:46:12,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:46:12,998 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:46:13,001 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 04:46:13,001 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:46:13,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:13,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:13,002 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:13,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-29 04:46:13,004 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:46:13,004 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:46:13,004 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:46:13,004 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2023-11-29 04:46:13,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-29 04:46:13,008 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:46:13,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,060 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:13,064 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:46:13,064 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,072 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 14 transitions. Complement of second has 5 states. [2023-11-29 04:46:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:13,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-29 04:46:13,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-29 04:46:13,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:13,074 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 04:46:13,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,111 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:13,114 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:46:13,115 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,121 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 14 transitions. Complement of second has 5 states. [2023-11-29 04:46:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-29 04:46:13,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-29 04:46:13,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:13,122 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 04:46:13,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,158 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:13,162 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 04:46:13,162 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 19 transitions. Complement of second has 4 states. [2023-11-29 04:46:13,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:13,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-29 04:46:13,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-29 04:46:13,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:13,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 12 letters. Loop has 2 letters. [2023-11-29 04:46:13,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:13,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-29 04:46:13,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:13,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2023-11-29 04:46:13,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 04:46:13,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2023-11-29 04:46:13,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-29 04:46:13,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-29 04:46:13,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2023-11-29 04:46:13,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:13,175 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-29 04:46:13,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2023-11-29 04:46:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-29 04:46:13,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 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) [2023-11-29 04:46:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-11-29 04:46:13,177 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-11-29 04:46:13,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:13,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:46:13,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:46:13,178 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:13,214 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-11-29 04:46:13,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 34 transitions. [2023-11-29 04:46:13,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 04:46:13,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 28 transitions. [2023-11-29 04:46:13,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-29 04:46:13,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-11-29 04:46:13,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 28 transitions. [2023-11-29 04:46:13,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:13,217 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-11-29 04:46:13,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 28 transitions. [2023-11-29 04:46:13,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-11-29 04:46:13,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.08) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-11-29 04:46:13,219 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-29 04:46:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:46:13,220 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-29 04:46:13,221 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 04:46:13,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 27 transitions. [2023-11-29 04:46:13,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 04:46:13,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:13,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:13,223 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 1, 1] [2023-11-29 04:46:13,223 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:46:13,223 INFO L748 eck$LassoCheckResult]: Stem: 504#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 506#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 507#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 499#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 500#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 523#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 522#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 521#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 520#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 519#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 518#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 517#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 516#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 515#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 514#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 513#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 512#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 511#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 510#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 509#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 503#L12 [2023-11-29 04:46:13,223 INFO L750 eck$LassoCheckResult]: Loop: 503#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 508#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 503#L12 [2023-11-29 04:46:13,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash -926509747, now seen corresponding path program 3 times [2023-11-29 04:46:13,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:13,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509446555] [2023-11-29 04:46:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:13,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:13,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:13,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:13,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:13,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-11-29 04:46:13,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:13,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588201163] [2023-11-29 04:46:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:13,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:13,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:13,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:13,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:13,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1317636150, now seen corresponding path program 4 times [2023-11-29 04:46:13,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:13,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485609273] [2023-11-29 04:46:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:13,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:13,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:13,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:13,317 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:13,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:13,317 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:13,317 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:13,318 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:46:13,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:13,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:13,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:13,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2023-11-29 04:46:13,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:13,318 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:13,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:13,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:13,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:13,373 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:13,373 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:46:13,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:13,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:13,375 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:13,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-29 04:46:13,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:13,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:13,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-29 04:46:13,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:13,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:13,404 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:13,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-29 04:46:13,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:46:13,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:13,435 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:46:13,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-29 04:46:13,438 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:13,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:13,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:13,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:13,439 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:46:13,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:13,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:13,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:13,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2023-11-29 04:46:13,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:13,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:13,440 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:13,451 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:13,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:13,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:13,496 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:46:13,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:13,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:13,497 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:13,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-29 04:46:13,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:13,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:13,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:46:13,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:13,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:13,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:13,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:46:13,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:46:13,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:46:13,518 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 04:46:13,518 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:46:13,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:13,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:13,520 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:13,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-29 04:46:13,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:46:13,527 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:46:13,528 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:46:13,528 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-29 04:46:13,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:13,532 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:46:13,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,604 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:13,619 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 04:46:13,619 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,629 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2023-11-29 04:46:13,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 04:46:13,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 2 letters. [2023-11-29 04:46:13,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:13,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 23 letters. Loop has 2 letters. [2023-11-29 04:46:13,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:13,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 4 letters. [2023-11-29 04:46:13,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:13,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 42 transitions. [2023-11-29 04:46:13,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 04:46:13,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 31 transitions. [2023-11-29 04:46:13,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-29 04:46:13,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 04:46:13,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2023-11-29 04:46:13,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:13,635 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-29 04:46:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2023-11-29 04:46:13,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2023-11-29 04:46:13,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-11-29 04:46:13,638 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-29 04:46:13,638 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-29 04:46:13,638 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 04:46:13,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2023-11-29 04:46:13,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-29 04:46:13,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:13,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:13,640 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 1, 1, 1] [2023-11-29 04:46:13,640 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 04:46:13,640 INFO L748 eck$LassoCheckResult]: Stem: 656#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 657#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 658#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 659#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 660#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 661#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 654#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 655#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 677#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 676#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 675#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 674#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 673#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 672#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 671#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 670#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 669#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 668#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 667#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 666#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 665#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 664#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 663#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 652#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 662#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 653#L12 [2023-11-29 04:46:13,640 INFO L750 eck$LassoCheckResult]: Loop: 653#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 651#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 653#L12 [2023-11-29 04:46:13,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash 767012677, now seen corresponding path program 3 times [2023-11-29 04:46:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:13,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769069907] [2023-11-29 04:46:13,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:13,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:13,845 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:13,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:13,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769069907] [2023-11-29 04:46:13,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769069907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:46:13,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044932780] [2023-11-29 04:46:13,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:46:13,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:13,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:13,847 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:13,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 04:46:13,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-11-29 04:46:13,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:46:13,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:46:13,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:13,947 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:46:14,173 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:14,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044932780] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:46:14,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:46:14,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-11-29 04:46:14,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299971930] [2023-11-29 04:46:14,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:46:14,175 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 04:46:14,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2023-11-29 04:46:14,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:14,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245169082] [2023-11-29 04:46:14,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:14,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:14,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:14,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:14,209 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:14,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:14,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:14,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:14,209 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 04:46:14,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:14,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:14,210 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:14,210 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2023-11-29 04:46:14,210 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:14,210 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:14,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:14,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:14,222 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:14,260 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:14,260 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 04:46:14,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:14,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:14,266 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:14,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-29 04:46:14,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 04:46:14,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:14,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-29 04:46:14,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:14,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:14,287 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:14,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-29 04:46:14,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 04:46:14,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 04:46:14,318 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 04:46:14,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-29 04:46:14,322 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 04:46:14,322 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 04:46:14,322 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 04:46:14,322 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 04:46:14,322 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 04:46:14,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:14,322 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 04:46:14,322 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 04:46:14,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2023-11-29 04:46:14,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 04:46:14,323 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 04:46:14,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:14,332 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:14,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 04:46:14,372 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 04:46:14,372 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 04:46:14,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:14,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:14,373 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:14,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-29 04:46:14,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 04:46:14,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 04:46:14,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 04:46:14,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 04:46:14,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 04:46:14,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 04:46:14,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 04:46:14,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 04:46:14,392 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 04:46:14,394 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 04:46:14,394 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 04:46:14,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 04:46:14,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:14,397 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:14,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-29 04:46:14,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 04:46:14,398 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 04:46:14,398 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 04:46:14,398 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-29 04:46:14,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-29 04:46:14,401 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 04:46:14,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:14,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:14,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:14,478 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:14,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:14,493 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 04:46:14,493 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2023-11-29 04:46:14,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:14,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-29 04:46:14,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-29 04:46:14,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:14,504 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 04:46:14,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:14,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-29 04:46:14,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:14,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:14,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:14,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:14,570 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:14,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:14,585 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 04:46:14,585 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,601 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 43 transitions. Complement of second has 5 states. [2023-11-29 04:46:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-29 04:46:14,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-29 04:46:14,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:14,602 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 04:46:14,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:14,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:46:14,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:14,656 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:14,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:14,670 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 04:46:14,670 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,682 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 45 transitions. Complement of second has 4 states. [2023-11-29 04:46:14,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-29 04:46:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-29 04:46:14,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-29 04:46:14,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:14,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2023-11-29 04:46:14,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:14,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 4 letters. [2023-11-29 04:46:14,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 04:46:14,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 45 transitions. [2023-11-29 04:46:14,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-29 04:46:14,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 32 transitions. [2023-11-29 04:46:14,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 04:46:14,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-29 04:46:14,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 32 transitions. [2023-11-29 04:46:14,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:14,688 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-29 04:46:14,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 32 transitions. [2023-11-29 04:46:14,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2023-11-29 04:46:14,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-11-29 04:46:14,691 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-11-29 04:46:14,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 04:46:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:46:14,692 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:14,766 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2023-11-29 04:46:14,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 65 transitions. [2023-11-29 04:46:14,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 04:46:14,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 51 states and 53 transitions. [2023-11-29 04:46:14,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 04:46:14,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-29 04:46:14,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 53 transitions. [2023-11-29 04:46:14,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:14,770 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 53 transitions. [2023-11-29 04:46:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 53 transitions. [2023-11-29 04:46:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2023-11-29 04:46:14,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.04) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2023-11-29 04:46:14,774 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 52 transitions. [2023-11-29 04:46:14,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 04:46:14,776 INFO L428 stractBuchiCegarLoop]: Abstraction has 50 states and 52 transitions. [2023-11-29 04:46:14,776 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 04:46:14,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 52 transitions. [2023-11-29 04:46:14,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 04:46:14,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:14,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:14,779 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [24, 22, 1, 1, 1] [2023-11-29 04:46:14,779 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-29 04:46:14,779 INFO L748 eck$LassoCheckResult]: Stem: 1324#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1325#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1320#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1321#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1326#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1327#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1322#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1323#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1369#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1368#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1367#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1366#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1365#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1364#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1363#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1362#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1361#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1360#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1359#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1358#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1357#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1356#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1355#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1354#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1353#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1352#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1351#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1350#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1349#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1348#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1347#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1346#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1345#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1344#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1343#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1342#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1341#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1340#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1339#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1338#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1337#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1336#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1335#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1334#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1333#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1332#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1331#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1329#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1328#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1330#L12 [2023-11-29 04:46:14,779 INFO L750 eck$LassoCheckResult]: Loop: 1330#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1331#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1329#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1328#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1330#L12 [2023-11-29 04:46:14,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:14,780 INFO L85 PathProgramCache]: Analyzing trace with hash -694298463, now seen corresponding path program 4 times [2023-11-29 04:46:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:14,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146676730] [2023-11-29 04:46:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:14,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:15,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:15,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146676730] [2023-11-29 04:46:15,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146676730] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:46:15,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064553583] [2023-11-29 04:46:15,270 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:46:15,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:15,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:15,271 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:15,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 04:46:15,322 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:46:15,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:46:15,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:46:15,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:15,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:46:16,153 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:16,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064553583] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:46:16,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:46:16,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2023-11-29 04:46:16,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045750968] [2023-11-29 04:46:16,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:46:16,154 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 04:46:16,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:16,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2023-11-29 04:46:16,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:16,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434071375] [2023-11-29 04:46:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:16,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:16,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:16,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:16,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:16,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-29 04:46:16,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 04:46:16,210 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. cyclomatic complexity: 3 Second operand has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:16,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:16,385 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2023-11-29 04:46:16,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 125 transitions. [2023-11-29 04:46:16,387 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 04:46:16,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 99 states and 101 transitions. [2023-11-29 04:46:16,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 04:46:16,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-29 04:46:16,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 101 transitions. [2023-11-29 04:46:16,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:16,390 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 101 transitions. [2023-11-29 04:46:16,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 101 transitions. [2023-11-29 04:46:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2023-11-29 04:46:16,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 97 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:16,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2023-11-29 04:46:16,396 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2023-11-29 04:46:16,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 04:46:16,397 INFO L428 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2023-11-29 04:46:16,397 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-29 04:46:16,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2023-11-29 04:46:16,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 04:46:16,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:16,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:16,403 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [48, 46, 1, 1, 1] [2023-11-29 04:46:16,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-29 04:46:16,404 INFO L748 eck$LassoCheckResult]: Stem: 1836#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1837#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1832#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1833#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1838#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1839#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1834#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1835#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1929#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1928#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1927#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1926#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1925#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1924#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1923#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1922#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1921#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1920#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1919#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1918#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1917#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1916#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1915#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1914#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1913#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1912#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1911#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1910#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1909#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1908#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1907#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1906#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1905#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1904#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1903#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1902#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1901#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1900#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1899#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1898#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1897#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1896#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1895#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1894#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1893#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1892#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1891#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1890#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1889#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1888#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1887#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1886#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1885#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1884#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1883#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1882#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1881#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1880#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1879#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1878#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1877#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1876#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1875#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1874#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1873#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1872#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1871#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1870#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1869#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1868#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1867#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1866#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1865#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1864#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1863#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1862#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1861#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1860#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1859#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1858#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1857#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1856#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1855#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1854#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1853#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1852#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1851#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1850#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1849#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1848#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1847#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1846#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1845#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1844#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1843#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1841#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1840#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1842#L12 [2023-11-29 04:46:16,404 INFO L750 eck$LassoCheckResult]: Loop: 1842#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1843#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1841#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1840#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1842#L12 [2023-11-29 04:46:16,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:16,404 INFO L85 PathProgramCache]: Analyzing trace with hash -818401447, now seen corresponding path program 5 times [2023-11-29 04:46:16,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:16,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966432922] [2023-11-29 04:46:16,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:16,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:18,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:18,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966432922] [2023-11-29 04:46:18,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966432922] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:46:18,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138847817] [2023-11-29 04:46:18,053 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:46:18,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:18,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:18,054 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:18,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 04:46:18,151 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2023-11-29 04:46:18,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:46:18,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 04:46:18,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:18,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:18,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:46:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:46:19,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138847817] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:46:19,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:46:19,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 51 [2023-11-29 04:46:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855809607] [2023-11-29 04:46:19,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:46:19,455 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 04:46:19,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:19,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-11-29 04:46:19,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:19,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886550512] [2023-11-29 04:46:19,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:19,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:19,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:19,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:19,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:19,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-11-29 04:46:19,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 04:46:19,507 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 51 states, 51 states have (on average 2.019607843137255) internal successors, (103), 51 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:19,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:19,674 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2023-11-29 04:46:19,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2023-11-29 04:46:19,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 04:46:19,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 105 states and 107 transitions. [2023-11-29 04:46:19,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 04:46:19,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-29 04:46:19,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 107 transitions. [2023-11-29 04:46:19,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 04:46:19,678 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 107 transitions. [2023-11-29 04:46:19,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 107 transitions. [2023-11-29 04:46:19,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2023-11-29 04:46:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.0192307692307692) internal successors, (106), 103 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:46:19,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 106 transitions. [2023-11-29 04:46:19,684 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 106 transitions. [2023-11-29 04:46:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-29 04:46:19,685 INFO L428 stractBuchiCegarLoop]: Abstraction has 104 states and 106 transitions. [2023-11-29 04:46:19,686 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-29 04:46:19,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 106 transitions. [2023-11-29 04:46:19,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 04:46:19,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 04:46:19,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 04:46:19,689 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [51, 49, 1, 1, 1] [2023-11-29 04:46:19,689 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-29 04:46:19,690 INFO L748 eck$LassoCheckResult]: Stem: 2672#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2673#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2668#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2669#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2674#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2675#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2670#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2671#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2771#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2770#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2769#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2768#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2767#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2766#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2765#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2764#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2763#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2762#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2761#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2760#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2759#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2758#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2757#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2756#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2755#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2754#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2753#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2752#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2751#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2750#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2749#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2748#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2747#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2746#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2745#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2744#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2743#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2742#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2741#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2740#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2739#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2738#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2737#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2736#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2735#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2734#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2733#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2732#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2731#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2730#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2729#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2728#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2727#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2726#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2725#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2724#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2723#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2722#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2721#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2720#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2719#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2718#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2717#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2716#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2715#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2714#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2713#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2712#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2711#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2710#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2709#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2708#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2707#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2706#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2705#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2704#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2703#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2702#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2701#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2700#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2699#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2698#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2697#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2696#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2695#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2694#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2693#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2692#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2691#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2690#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2689#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2688#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2687#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2686#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2685#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2684#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2683#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2682#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2681#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2680#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2679#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2677#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2676#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2678#L12 [2023-11-29 04:46:19,690 INFO L750 eck$LassoCheckResult]: Loop: 2678#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2679#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2677#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2676#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2678#L12 [2023-11-29 04:46:19,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:19,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1994822288, now seen corresponding path program 6 times [2023-11-29 04:46:19,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:19,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359469244] [2023-11-29 04:46:19,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:19,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:19,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:19,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:19,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 3 times [2023-11-29 04:46:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:19,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442685924] [2023-11-29 04:46:19,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:19,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:19,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:19,803 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:19,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:19,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1522445560, now seen corresponding path program 7 times [2023-11-29 04:46:19,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:19,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027838952] [2023-11-29 04:46:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:19,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:19,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:19,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:46:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:23,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:46:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:46:23,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 04:46:23 BoogieIcfgContainer [2023-11-29 04:46:23,717 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 04:46:23,718 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:46:23,718 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:46:23,718 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:46:23,718 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:46:10" (3/4) ... [2023-11-29 04:46:23,720 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 04:46:23,781 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:46:23,781 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:46:23,782 INFO L158 Benchmark]: Toolchain (without parser) took 13452.16ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 97.9MB in the beginning and 155.6MB in the end (delta: -57.6MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2023-11-29 04:46:23,782 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 146.8MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:46:23,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.38ms. Allocated memory is still 146.8MB. Free memory was 97.9MB in the beginning and 88.6MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 04:46:23,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.15ms. Allocated memory is still 146.8MB. Free memory was 88.4MB in the beginning and 87.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:46:23,783 INFO L158 Benchmark]: Boogie Preprocessor took 21.13ms. Allocated memory is still 146.8MB. Free memory was 87.2MB in the beginning and 85.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:46:23,783 INFO L158 Benchmark]: RCFGBuilder took 181.14ms. Allocated memory is still 146.8MB. Free memory was 85.8MB in the beginning and 77.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 04:46:23,783 INFO L158 Benchmark]: BuchiAutomizer took 12968.85ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 77.1MB in the beginning and 159.8MB in the end (delta: -82.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:46:23,784 INFO L158 Benchmark]: Witness Printer took 63.54ms. Allocated memory is still 203.4MB. Free memory was 159.8MB in the beginning and 155.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:46:23,785 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 146.8MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.38ms. Allocated memory is still 146.8MB. Free memory was 97.9MB in the beginning and 88.6MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.15ms. Allocated memory is still 146.8MB. Free memory was 88.4MB in the beginning and 87.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.13ms. Allocated memory is still 146.8MB. Free memory was 87.2MB in the beginning and 85.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 181.14ms. Allocated memory is still 146.8MB. Free memory was 85.8MB in the beginning and 77.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 12968.85ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 77.1MB in the beginning and 159.8MB in the end (delta: -82.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.54ms. Allocated memory is still 203.4MB. Free memory was 159.8MB in the beginning and 155.6MB in the end (delta: 4.2MB). 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 11 terminating modules (6 trivial, 3 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function ((-2 * j) + 103) and consists of 4 locations. One deterministic module has affine ranking function ((-2 * j) + 103) and consists of 3 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function ((-2 * j) + 103) and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 51 locations. The remainder module has 104 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.8s and 8 iterations. TraceHistogramMax:51. Analysis of lassos took 11.4s. Construction of modules took 0.3s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 9 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 53 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN2 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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 j; [L8] j = 100 [L9] i = 0 VAL [i=0, j=100] [L11] COND TRUE i < j VAL [i=0, j=100] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=1, j=99] [L11] COND TRUE i < j VAL [i=1, j=99] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=2, j=98] [L11] COND TRUE i < j VAL [i=2, j=98] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=3, j=97] [L11] COND TRUE i < j VAL [i=3, j=97] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=4, j=96] [L11] COND TRUE i < j VAL [i=4, j=96] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=5, j=95] [L11] COND TRUE i < j VAL [i=5, j=95] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=6, j=94] [L11] COND TRUE i < j VAL [i=6, j=94] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=7, j=93] [L11] COND TRUE i < j VAL [i=7, j=93] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=8, j=92] [L11] COND TRUE i < j VAL [i=8, j=92] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=9, j=91] [L11] COND TRUE i < j VAL [i=9, j=91] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=10, j=90] [L11] COND TRUE i < j VAL [i=10, j=90] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=11, j=89] [L11] COND TRUE i < j VAL [i=11, j=89] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=12, j=88] [L11] COND TRUE i < j VAL [i=12, j=88] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=13, j=87] [L11] COND TRUE i < j VAL [i=13, j=87] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=14, j=86] [L11] COND TRUE i < j VAL [i=14, j=86] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=15, j=85] [L11] COND TRUE i < j VAL [i=15, j=85] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=16, j=84] [L11] COND TRUE i < j VAL [i=16, j=84] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=17, j=83] [L11] COND TRUE i < j VAL [i=17, j=83] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=18, j=82] [L11] COND TRUE i < j VAL [i=18, j=82] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=19, j=81] [L11] COND TRUE i < j VAL [i=19, j=81] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=20, j=80] [L11] COND TRUE i < j VAL [i=20, j=80] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=21, j=79] [L11] COND TRUE i < j VAL [i=21, j=79] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=22, j=78] [L11] COND TRUE i < j VAL [i=22, j=78] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=23, j=77] [L11] COND TRUE i < j VAL [i=23, j=77] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=24, j=76] [L11] COND TRUE i < j VAL [i=24, j=76] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=25, j=75] [L11] COND TRUE i < j VAL [i=25, j=75] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=26, j=74] [L11] COND TRUE i < j VAL [i=26, j=74] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=27, j=73] [L11] COND TRUE i < j VAL [i=27, j=73] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=28, j=72] [L11] COND TRUE i < j VAL [i=28, j=72] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=29, j=71] [L11] COND TRUE i < j VAL [i=29, j=71] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=30, j=70] [L11] COND TRUE i < j VAL [i=30, j=70] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=31, j=69] [L11] COND TRUE i < j VAL [i=31, j=69] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=32, j=68] [L11] COND TRUE i < j VAL [i=32, j=68] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=33, j=67] [L11] COND TRUE i < j VAL [i=33, j=67] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=34, j=66] [L11] COND TRUE i < j VAL [i=34, j=66] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=35, j=65] [L11] COND TRUE i < j VAL [i=35, j=65] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=36, j=64] [L11] COND TRUE i < j VAL [i=36, j=64] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=37, j=63] [L11] COND TRUE i < j VAL [i=37, j=63] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=38, j=62] [L11] COND TRUE i < j VAL [i=38, j=62] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=39, j=61] [L11] COND TRUE i < j VAL [i=39, j=61] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=40, j=60] [L11] COND TRUE i < j VAL [i=40, j=60] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=41, j=59] [L11] COND TRUE i < j VAL [i=41, j=59] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=42, j=58] [L11] COND TRUE i < j VAL [i=42, j=58] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=43, j=57] [L11] COND TRUE i < j VAL [i=43, j=57] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=44, j=56] [L11] COND TRUE i < j VAL [i=44, j=56] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=45, j=55] [L11] COND TRUE i < j VAL [i=45, j=55] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=46, j=54] [L11] COND TRUE i < j VAL [i=46, j=54] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=47, j=53] [L11] COND TRUE i < j VAL [i=47, j=53] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=49, j=51] [L11] COND TRUE i < j VAL [i=49, j=51] [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j 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 j; [L8] j = 100 [L9] i = 0 VAL [i=0, j=100] [L11] COND TRUE i < j VAL [i=0, j=100] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=1, j=99] [L11] COND TRUE i < j VAL [i=1, j=99] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=2, j=98] [L11] COND TRUE i < j VAL [i=2, j=98] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=3, j=97] [L11] COND TRUE i < j VAL [i=3, j=97] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=4, j=96] [L11] COND TRUE i < j VAL [i=4, j=96] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=5, j=95] [L11] COND TRUE i < j VAL [i=5, j=95] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=6, j=94] [L11] COND TRUE i < j VAL [i=6, j=94] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=7, j=93] [L11] COND TRUE i < j VAL [i=7, j=93] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=8, j=92] [L11] COND TRUE i < j VAL [i=8, j=92] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=9, j=91] [L11] COND TRUE i < j VAL [i=9, j=91] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=10, j=90] [L11] COND TRUE i < j VAL [i=10, j=90] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=11, j=89] [L11] COND TRUE i < j VAL [i=11, j=89] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=12, j=88] [L11] COND TRUE i < j VAL [i=12, j=88] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=13, j=87] [L11] COND TRUE i < j VAL [i=13, j=87] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=14, j=86] [L11] COND TRUE i < j VAL [i=14, j=86] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=15, j=85] [L11] COND TRUE i < j VAL [i=15, j=85] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=16, j=84] [L11] COND TRUE i < j VAL [i=16, j=84] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=17, j=83] [L11] COND TRUE i < j VAL [i=17, j=83] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=18, j=82] [L11] COND TRUE i < j VAL [i=18, j=82] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=19, j=81] [L11] COND TRUE i < j VAL [i=19, j=81] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=20, j=80] [L11] COND TRUE i < j VAL [i=20, j=80] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=21, j=79] [L11] COND TRUE i < j VAL [i=21, j=79] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=22, j=78] [L11] COND TRUE i < j VAL [i=22, j=78] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=23, j=77] [L11] COND TRUE i < j VAL [i=23, j=77] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=24, j=76] [L11] COND TRUE i < j VAL [i=24, j=76] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=25, j=75] [L11] COND TRUE i < j VAL [i=25, j=75] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=26, j=74] [L11] COND TRUE i < j VAL [i=26, j=74] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=27, j=73] [L11] COND TRUE i < j VAL [i=27, j=73] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=28, j=72] [L11] COND TRUE i < j VAL [i=28, j=72] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=29, j=71] [L11] COND TRUE i < j VAL [i=29, j=71] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=30, j=70] [L11] COND TRUE i < j VAL [i=30, j=70] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=31, j=69] [L11] COND TRUE i < j VAL [i=31, j=69] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=32, j=68] [L11] COND TRUE i < j VAL [i=32, j=68] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=33, j=67] [L11] COND TRUE i < j VAL [i=33, j=67] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=34, j=66] [L11] COND TRUE i < j VAL [i=34, j=66] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=35, j=65] [L11] COND TRUE i < j VAL [i=35, j=65] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=36, j=64] [L11] COND TRUE i < j VAL [i=36, j=64] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=37, j=63] [L11] COND TRUE i < j VAL [i=37, j=63] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=38, j=62] [L11] COND TRUE i < j VAL [i=38, j=62] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=39, j=61] [L11] COND TRUE i < j VAL [i=39, j=61] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=40, j=60] [L11] COND TRUE i < j VAL [i=40, j=60] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=41, j=59] [L11] COND TRUE i < j VAL [i=41, j=59] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=42, j=58] [L11] COND TRUE i < j VAL [i=42, j=58] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=43, j=57] [L11] COND TRUE i < j VAL [i=43, j=57] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=44, j=56] [L11] COND TRUE i < j VAL [i=44, j=56] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=45, j=55] [L11] COND TRUE i < j VAL [i=45, j=55] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=46, j=54] [L11] COND TRUE i < j VAL [i=46, j=54] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=47, j=53] [L11] COND TRUE i < j VAL [i=47, j=53] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=49, j=51] [L11] COND TRUE i < j VAL [i=49, j=51] [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 04:46:23,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:24,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 04:46:24,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:24,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:24,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:46:24,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0413333f-2cfa-440a-8a1e-86557958991b/bin/uautomizer-verify-BQ2R08f2Ya/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)